{"kind": "product", "path": "vulns/openssl", "name": "openssl", "product": "openssl", "items": [{"id": "CVE-2026-84784", "noindex": false, "published": "2026-09-29T15:32:25.758Z", "modified": "2026-09-29T16:44:09.766Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00403, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-84784", "title": "QUIC: Unbounded RETIRE_CONNECTION_ID Backlog", "description": "Issue summary: A malicious remote peer may flood the local QUIC\nstack with NEW_CONNECTION_ID frames by avoiding a limit check on\nhow many connection IDs the remote QUIC stack can use.\n\nImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\nfor every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID\nframe is dispatched via the Control Frame Queue (CFQ). If the remote\npeer also withholds ACKs, then it can force the local stack\nto allocate ~400MB (depending on ACK delay).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism\nby which a remot", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fe", "https://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380a"], "fixes": ["3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-84783", "noindex": false, "published": "2026-09-29T15:32:24.699Z", "modified": "2026-09-29T16:42:41.306Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00226, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-84783", "title": "Use-After-Free in X.509 Extension Cache Under Concurrent Use", "description": "Issue summary: The first concurrent use of the same X.509 certificate by\nseveral threads may cause its cached extension data to be freed while\nanother thread is still using it.\n\nImpact summary: A remote, unauthenticated peer could crash a multi-threaded\nTLS client, or a multi-threaded TLS server that requests client\ncertificates, if the first certificate chains built to the same trusted CA\ncertificate are built by several connections at the same time. This is a\nuse-after-free read, which is likely to crash the process, resulting in a\nDenial of Service.\n\nCWE: CWE-416: Use After Free\n\nDescription: OpenSSL caches the decoded values of a certific", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/de97a1a54f43edefd43b5084ecac54ecadb33081", "https://nvd.nist.gov/vuln/detail/CVE-2026-84783"], "fixes": ["4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-84782", "noindex": false, "published": "2026-09-29T15:32:23.605Z", "modified": "2026-09-29T16:45:40.378Z", "cvss": 8.2, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "severity": "high", "epss": 0.0039, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-84782", "title": "DTLS Retransmits Handshake Messages From a Stale Buffer Offset", "description": "Issue summary: The DTLS retransmission logic does not correctly handle\na handshake message write that is suspended part-way through.\nThe retransmitted message can be read past the message buffer and\nthe retransmission overwrites the internal state the suspended write\nneeds to resume correctly.\n\nImpact summary: The retransmitted message can disclose a heap memory\nto the peer as plaintext handshake data or cause a crash and a Denial\nof Service when the read reaches an unmapped memory region.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: DTLS handshake messages can be written out in multiple\nfragments, and a write can suspend mid-message (retu", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c", "https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58"], "fixes": ["1.0.2zs", "1.1.1zj", "3.0.23", "3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-77696", "noindex": false, "published": "2026-09-29T15:32:22.520Z", "modified": "2026-09-29T16:51:33.618Z", "cvss": 3.7, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "low", "epss": 0.00243, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-77696", "title": "Timing Side-Channel in SM2 Signature Generation", "description": "Issue summary: SM2 signature generation uses non-constant-time arithmetic\non secret values, forming a timing side-channel.\n\nImpact summary: An attacker able to measure SM2 signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: SM2 signature generation computes the signature value using\nvariable-time BIGNUM operations on the secret nonce and the private key, so\nthe time taken to produce an SM2 signature depends on these secret values,\nforming a timing si", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/20b20628d39b2dcc4677194bd68c7c060fa598cb", "https://github.com/openssl/openssl/commit/1c4aed808a7aea32d2d013049c2e0d9fef164fc9"], "fixes": ["1.1.1zj", "3.0.23", "3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-75806", "noindex": false, "published": "2026-09-29T15:32:21.457Z", "modified": "2026-09-29T16:53:23.785Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.00387, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-75806", "title": "Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS", "description": "Issue summary: An established DTLS 1.2 association using an AEAD cipher suite\ncan be terminated by a single unauthenticated datagram whose encrypted\nfragment is shorter than the mandatory explicit IV and authentication tag\noverhead.\n\nImpact summary: An attacker who can send a datagram that is routed to an\nexisting DTLS 1.2 association can tear that association down without knowing\nany key material. This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/04728a289a823e68137f88da016cb9ede307217d", "https://github.com/openssl/openssl/commit/050b275cd671a6eed1d6457642d41a5a77aab972"], "fixes": ["1.1.1zj", "3.0.23", "3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-75805", "noindex": false, "published": "2026-09-29T15:32:20.408Z", "modified": "2026-09-29T16:54:39.263Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.00222, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-75805", "title": "NULL Pointer Dereference in CMP Client Revocation Response Handling", "description": "Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n'openssl cmp -cmd rr -csr <file>' on th", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7", "https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166"], "fixes": ["3.0.23", "3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-75804", "noindex": false, "published": "2026-09-29T15:32:19.335Z", "modified": "2026-09-29T17:15:40.043Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.00352, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-75804", "title": "QUIC Connection-Level Flow Control is Not Enforced for Streams", "description": "Issue summary: OpenSSL QUIC stack does not enforce connection\nlevel flow control for streams. Remote peers may send more bytes\nas long as they fit within the stream flow control limits.\n\nImpact summary: A malicious remote peer may exploit the lack of connection\nflow control for streams to make the QUIC stack receive ~100MB of memory\ninstead of 768 KiB (default flow control window size).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The local QUIC stack advertises two flow control limits\nto its remote peer: stream flow control limit and connection flow\ncontrol limit. The remote peer must follow both limits w", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/64d3102fb5b54311e92517f26ba00169d719e74a", "https://github.com/openssl/openssl/commit/2e8f54666b3fb7b05ff5f58aa6cac9285163654e"], "fixes": ["3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-72897", "noindex": false, "published": "2026-09-29T15:32:18.277Z", "modified": "2026-09-29T17:16:38.842Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00266, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-72897", "title": "Out-of-Bounds Access After SSL_set_SSL_CTX() During a Handshake", "description": "Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a\nconnection to a different SSL_CTX part way through a handshake may access\nmemory beyond the end of an internal array if the replacement context knows\nabout more provider signature algorithms than the context the connection was\ncreated from. Applications which never call SSL_set_SSL_CTX() are not\naffected.\n\nImpact summary: A remote peer may be able to cause a small out-of-bounds\nread, and in some circumstances a fixed-value out-of-bounds write, on the\nserver heap. This may lead to a Denial of Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: A TLS connection records h", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/e87ed26b298a74d8ba61a53e9c7bcd1acac6b814", "https://github.com/openssl/openssl/commit/9c54d209486f6b1ad79fe2179c40f13200fa4f61"], "fixes": ["3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-54875", "noindex": false, "published": "2026-09-29T15:32:17.206Z", "modified": "2026-09-29T17:17:20.483Z", "cvss": 3.7, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "low", "epss": 0.00294, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-54875", "title": "Non-Constant-Time SM2 Scalar Multiplication on ARM64 and RISC-V", "description": "Issue summary: A non-constant-time optimized implementation of scalar\npoint multiplication is used for SM2 private key operations on ARM64 and\nRISC-V platforms.\n\nImpact summary: An attacker able to measure the time taken by, or to observe\nthe cache-line access pattern of SM2 signing or decryption on an affected\nplatform can learn information about the secret scalar.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: On ARM64 and RISC-V processors, the SM2 curve uses an optimized\nscalar multiplication implementation whose conditional branches and table\nlook ups are chosen according to the bits of the secret scalar. The execution\ntime a", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/9794ed473764839275cb701b4850f3c24d929c28", "https://github.com/openssl/openssl/commit/dddad955d5ff3e9507619cf4e0f13e9988e2197c"], "fixes": ["3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-54873", "noindex": false, "published": "2026-09-29T15:32:16.134Z", "modified": "2026-09-30T20:11:09.162Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00462, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-54873", "title": "QUIC STREAM Fragment Metadata DoS", "description": "Issue summary: QUIC process may keep memory for QUIC packet\nbuffer for much longer period than necessary.\n\nImpact summary: Remote peer can exploit this vulnerability\nby sending maliciously crafted packets, making the local\nQUIC stack to keep the memory for packet buffers allocated.\nThe time for which the memory remains allocated is entirely\nunder the control of the potentially malicious remote peer.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: To save copy operation from the packet buffer to the\nstream reassemble buffer the QUIC stack leaves the stream data\non the packet buffer waiting to be copied to a bu", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/1f643b8bc735487b500a1f68a7fb3a22d5e38e23", "https://github.com/openssl/openssl/commit/7127fb10888b49711c63128a09e524c0d2d5d0b2"], "fixes": ["3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-54872", "noindex": false, "published": "2026-09-29T15:32:15.075Z", "modified": "2026-09-29T17:28:12.657Z", "cvss": 3.7, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "low", "epss": 0.00263, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-54872", "title": "Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves", "description": "Issue summary: The generic elliptic-curve scalar multiplication used for\nECDSA and SM2 signature operations with curves that do not have a dedicated\nimplementation leaks information about the secret nonce through timing.\n\nImpact summary: An attacker able to measure signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: The generic elliptic-curve scalar multiplication used for\ncurves that do not have a dedicated constant-time implementation pads the\nsecr", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/8166827a78aad164a07aa86dea2b425403ced471", "https://github.com/openssl/openssl/commit/1a5bee8dc57430a2be69cd1ffe7fec6a62f4f179"], "fixes": ["1.0.2zs", "1.1.1zj", "3.0.23", "3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-42772", "noindex": false, "published": "2026-09-29T15:32:14.009Z", "modified": "2026-09-30T20:11:09.295Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.0033, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-42772", "title": "Potential CPU DoS via O(n^2) Fragment Reassembly in QUIC", "description": "Issue summary: The QUIC stream reassembly algorithm performance deteriorates\nprogressively as packets are arriving out of order. The worst case has\na quadratic complexity proportional to the number of stream frames kept in\nthe buffer for the received stream data.\n\nImpact summary: A remote QUIC peer that completes the handshake can create\na connection-scoped CPU pressure and potentially a Denial of Service using\ncompliant STREAM frames inside the advertised receive window, with low\nattacker bandwidth.\n\nCWE: CWE-407: Inefficient Algorithmic Complexity\n\nDescription: OpenSSL manages received QUIC stream fragments using a\ndoubly-linked list. While", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/f42ae513bbda513b3c121d54834040ee4a0eae1a", "https://github.com/openssl/openssl/commit/32d0ed8afe1b8c3e7ece725b44663da3d7087a09"], "fixes": ["3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-35191", "noindex": false, "published": "2026-09-29T15:32:12.944Z", "modified": "2026-09-30T20:11:09.437Z", "cvss": 3.7, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "low", "epss": 0.00357, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-35191", "title": "QUIC Unvalidated Amplification Credit may be Over Accounted", "description": "Issue summary: The OpenSSL QUIC server, when configured to not preform address\nvalidation, can be forced to count incoming packets multiple times in its\nunvalidated credit computation, leading to a violation of the RFC 9000\nunvalidated connection amplification limit of 3 times the amount of data\nreceived.\n\nImpact summary: A remote attacker able to spoof packets to a server using the\nOpenSSL QUIC implementation might use the server for an amplification of\na DDoS attack.\n\nCWE: CWE-440: Expected Behavior Violation \n\nDescription: OpenSSL's QUIC stack, when operating as a server, enforces client\naddress validation (RFC 9000, Section 8), to confirm", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/e44292e58b090014232ef75bd400393851b24d1a", "https://github.com/openssl/openssl/commit/2de4c35fb13fc58f43fd8dc1d261700472ce72e5"], "fixes": ["3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-35189", "noindex": false, "published": "2026-09-29T15:32:11.889Z", "modified": "2026-09-30T20:11:09.577Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.00267, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-35189", "title": "Excessive Memory Allocation in Relative CRLDP Processing", "description": "Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\ndistribution points causes disproportionate heap growth when OpenSSL caches\nX.509 extensions.\n\nImpact summary: Receiving a crafted certificate from a malicious peer can lead\nto significant memory pressure and possible Denial of Service in clients or\nin servers that solicit client certificates.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: A certificate or a set of certificates that fits under the limit for\nsize of certificates accepted from the peer (~100 KiB) can result in allocation\nof several hundred MiB of resident memory on the receivin", "references": ["https://openssl-library.org/news/secadv/20260929.txt", "https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84", "https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f"], "fixes": ["1.0.2zs", "1.1.1zj", "3.0.23", "3.4.8", "3.5.9", "3.6.5", "4.0.3"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-75803", "noindex": false, "published": "2026-08-25T13:00:25.067Z", "modified": "2026-09-01T18:23:06.793Z", "cvss": 9.1, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "severity": "critical", "epss": 0.00232, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-75803", "title": "AEAD Forgeries with Empty Ciphertext When Using EVP_Cipher()", "description": "Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\nciphertext can report success without verifying the supplied authentication\ntag when the operation is finalized by calling the EVP_Cipher() function.\n\nImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\nexpecting the call to check the AEAD tag may accept forged messages.\n\nCWE: CWE-354 (Improper Validation of Integrity Check Value)\n\nDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\nshot encryption and decryption call. It also verifies the AEAD tag after the\ndecryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphe", "references": ["https://openssl-library.org/news/secadv/20260825.txt", "https://github.com/openssl/openssl/commit/6c7aa6f8f6449b7fe0137ee8be65fcd239bd7d6a", "https://github.com/openssl/openssl/commit/3621257986e27e540bf96a11570929a6e5a9e05b"], "fixes": ["3.0.22", "3.4.7", "3.5.8", "3.6.4", "4.0.2"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-63076", "noindex": false, "published": "2026-08-25T13:00:11.218Z", "modified": "2026-08-25T14:37:32.193Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.01602, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-63076", "title": "Invalid Pointer Dereference in CMP Server via Crafted protectionAlg", "description": "Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP", "references": ["https://openssl-library.org/news/secadv/20260825.txt", "https://github.com/openssl/openssl/commit/a17cc8d612ecff6d94a9b7ca8b5283ddf5ff570e", "https://github.com/openssl/openssl/commit/a7af46a92d0ce19a90e669ef56d2576a07924226"], "fixes": ["3.0.22", "3.4.7", "3.5.8", "3.6.4", "4.0.2"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-63075", "noindex": false, "published": "2026-08-25T13:00:04.752Z", "modified": "2026-08-25T14:36:51.928Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.0057, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-63075", "title": "QUIC ACK-only Packet Retention Can Cause Memory Exhaustion", "description": "Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly\nsends ack-eliciting packets while not acknowledging ACK-only responses, the\nQUIC stack can retain ACK-only packet metadata for the lifetime of the\nconnection.\n\nImpact summary: A remote peer that can complete a QUIC handshake can\ncause connection-scoped memory growth which may lead to Denial of Service\nthrough memory exhaustion, especially with sustained traffic or many concurrent\nQUIC connections.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: When the OpenSSL QUIC stack sends an ACK-only packet,\nthere is no requirement by the QUI", "references": ["https://openssl-library.org/news/secadv/20260825.txt", "https://github.com/openssl/openssl/commit/7308946576b12e64b8be53bcf0a120354b2b42bc", "https://github.com/openssl/openssl/commit/bf84721c2548351176e367e6de505792f0118dc6"], "fixes": ["3.4.7", "3.5.8", "3.6.4", "4.0.2"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-63074", "noindex": false, "published": "2026-08-25T12:59:58.278Z", "modified": "2026-08-25T14:36:13.170Z", "cvss": 5.9, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "medium", "epss": 0.00588, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-63074", "title": "CMP Indefinite Cache Growth of ExtraCerts", "description": "Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\nadditional certificates (extraCerts) sent in a CMP message, but never expunges\nthem (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX\nfrequently, this cache of extraCerts may grow unboundedly, and a malicious\nclient may flood a CMP server with requests driving this growth.\n\nImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\nfor the lifetime of a server process may observe unbounded memory growth in the\nevent a malicious client repeatedly sends requests containing unique extra\ncertificates, which may lead to OOM conditions.", "references": ["https://openssl-library.org/news/secadv/20260825.txt", "https://github.com/openssl/openssl/commit/74ae7f6df47a5767c1010b88c47507dfc5b32c46", "https://github.com/openssl/openssl/commit/01e567978a55fba18142a230380c31296049fae7"], "fixes": ["3.0.22", "3.4.7", "3.5.8", "3.6.4", "4.0.2"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-63073", "noindex": false, "published": "2026-08-25T12:59:43.356Z", "modified": "2026-08-31T19:12:54.136Z", "cvss": 9.8, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "severity": "critical", "epss": 0.01159, "kev": false, "exploits": ["public-poc"], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-63073", "title": "Untrusted Sender DN Used as Format String in CMP Response Validation", "description": "Issue summary: OpenSSL CMP response validation passed an unexpected response\nsender distinguished name directly as the format string to `ERR_raise_data()`.\n\nImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\nthat enforces an expected sender or uses a pinned server certificate whose\nsubject becomes the default expected sender.\n\nCWE: CWE-134 (Use of Externally-Controlled Format String)\n\nDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\nconverts the peer-supplied sender distinguished name with X509_NAME_oneline()\nand passes it directly as the format argument to ERR_raise_data(). Percent\n", "references": ["https://openssl-library.org/news/secadv/20260825.txt", "https://github.com/openssl/openssl/commit/7eb2e3ec9d1d4f35c8022fccd4b03398b3f33e21", "https://github.com/openssl/openssl/commit/6a0acc072b4d37a7cac1252a29c1ce1f00c5ec29"], "fixes": ["3.4.7", "3.5.8", "3.6.4", "4.0.2"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}, {"id": "CVE-2026-63072", "noindex": false, "published": "2026-08-25T12:59:34.428Z", "modified": "2026-08-25T14:29:55.378Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.00916, "kev": false, "exploits": [], "stacks": [{"name": "network", "path": "vulns/stack/network", "slug": "network"}], "path": "vulns/cve-2026-63072", "title": "Heap Buffer Overflow in CMS Key Unwrapping", "description": "Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap", "references": ["https://openssl-library.org/news/secadv/20260825.txt", "https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335", "https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756"], "fixes": ["1.1.1zi", "3.0.22", "3.4.7", "3.5.8", "3.6.4", "4.0.2"], "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}]}], "total": 141, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 8, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "openssl", "path": "vulns/openssl", "ecosystem": ""}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": ["4.0.2", "4.0.1", "4.0.0", "3.6.4", "3.6.3", "3.6.2", "3.6.1", "3.6.0", "3.5.8", "3.5.7", "3.5.6", "3.5.5"], "stats": {"recent": 14, "kev": 0}, "lastmod": "2026-09-30T20:11:09.577Z", "early_advisories": [], "license": "Подборку PatchFirst и наши дополнения (приоритеты, ранние предупреждения, тексты, сводки и агрегаты) можно свободно использовать для собственных целей, включая внутренние задачи бизнеса. Перепродажа, коммерческое распространение и массовое зеркалирование этой подборки или дополнений допускаются только по письменному соглашению с оператором. При любом использовании или публикации подборки или наших дополнений указывайте PatchFirst (https://ru.patchfirst.dev/vulns/) с этой ссылкой на страницу ленты своего региона. Исходные записи открытых источников остаются под их лицензиями и условиями. Эти условия не ограничивают ваши права на исходные данные, которые можно получить у источников напрямую.", "terms_url": "https://ru.patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://ru.patchfirst.dev/vulns/"}, "source_changes": "PatchFirst отбирает, нормализует и объединяет записи; могут добавляться сводки и переводы. Новости указываются ссылкой на первоисточник в самой записи.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Лицензии исходных баз различаются; см. каталог источников."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Оценки доступны свободно; запрашивается указание источника (FIRST EPSS, оценки подготовлены Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. 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