{"kind": "product", "path": "vulns/npm/webpack-dev-server", "name": "webpack-dev-server", "product": "webpack-dev-server", "ecosystem": "npm", "items": [{"id": "CVE-2026-14631", "noindex": false, "published": "2026-07-03T17:23:41.451Z", "modified": "2026-07-06T15:54:11.285Z", "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": 0.00517, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-14631", "title": "webpack-dev-server vulnerable to denial of service via a malformed Host or Origin header", "description": "webpack-dev-server versions 5.2.5 and earlier terminate the whole Node.js process when an unauthenticated peer sends either a normal HTTP request with a malformed Host header or a WebSocket upgrade to the default /ws endpoint with a malformed Origin header. The malformed value causes an uncaught exception in the host-validation path and crashes the dev server. Impact is limited to availability of the development server, no data disclosure, no code execution. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: keep the dev server bound to localhost (the default) and do not expose it to untrusted networks.", "references": ["https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-m28w-2pqf-7qgj", "https://cna.openjsf.org/security-advisories.html", "https://nvd.nist.gov/vuln/detail/CVE-2026-14631"], "fixes": ["5.2.6"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}, {"id": "CVE-2026-14620", "noindex": false, "published": "2026-07-03T17:00:00.679Z", "modified": "2026-07-06T15:54:51.519Z", "cvss": 4.7, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L", "severity": "medium", "epss": 0.00521, "kev": false, "exploits": ["exploitdb"], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-14620", "title": "webpack-dev-server vulnerable to cross-site request forgery via internal developer endpoints", "description": "webpack-dev-server versions 5.2.5 and earlier expose two internal developer endpoints, /webpack-dev-server/open-editor and /webpack-dev-server/invalidate, that perform state-changing actions on any GET request without verifying that the request originated from the dev server's own page. Any website a developer visits while the dev server is running can trigger these endpoints cross-origin with no interaction beyond the visit. An attacker can open an arbitrary existing local file in the developer's editor, including files outside the project root, and repeated requests can spawn editor processes and force recompilations that degrade the develo", "references": ["https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-f5vj-f2hx-8m93", "https://cna.openjsf.org/security-advisories.html", "https://nvd.nist.gov/vuln/detail/CVE-2026-14620"], "fixes": ["5.2.6"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}, {"id": "CVE-2026-9595", "noindex": false, "published": "2026-06-15T15:00:21.488Z", "modified": "2026-06-15T16:08:35.549Z", "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": 0.00163, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-9595", "title": "webpack-dev-server vulnerable to HMR WebSocket interception via permissive user proxies", "description": "Impact: When a user-configured proxy on webpack-dev-server has a broad context (e.g. /) and ws: true, it also intercepts the dev server's own HMR WebSocket and forwards it to the proxy target. This leaks the browser's cookies and Origin header to the backend, bypasses the dev server's Host/Origin validation, and corrupts the HMR socket (both HMR and the proxy end up writing to the same socket).\n\nPatches: Fixed in webpack-dev-server@5.2.5.\n\nWorkarounds: Scope user-defined proxy context to specific paths instead of /, or omit ws: true from the proxy entry when WebSocket forwarding is not required.", "references": ["https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-mx8g-39q3-5c79", "https://cna.openjsf.org/security-advisories.html", "https://github.com/webpack/webpack-dev-server/pull/4316"], "fixes": ["5.2.5"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}, {"id": "CVE-2026-6402", "noindex": false, "published": "2026-05-12T07:45:21.253Z", "modified": "2026-05-12T13:00:06.847Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N", "severity": "medium", "epss": 0.00291, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-6402", "title": "webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins", "description": "webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward a", "references": ["https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-79cf-xcqc-c78w", "https://cna.openjsf.org/security-advisories.html", "https://nvd.nist.gov/vuln/detail/CVE-2026-6402"], "fixes": ["5.2.4"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}, {"id": "CVE-2025-30360", "noindex": false, "published": "2025-06-03T17:41:59.457Z", "modified": "2025-06-03T17:58:12.605Z", "cvss": 6.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "severity": "medium", "epss": 0.00342, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2025-30360", "title": "webpack-dev-server users' source code may be stolen when they access a malicious web site with non-Chromium based browser", "description": "webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users' source code may be stolen when you access a malicious web site with non-Chromium based browser. The `Origin` header is checked to prevent Cross-site WebSocket hijacking from happening, which was reported by CVE-2018-14732. But webpack-dev-server always allows IP address `Origin` headers. This allows websites that are served on IP addresses to connect WebSocket. An attacker can obtain source code via a method similar to that used to exploit CVE-2018-14732. Version 5.2.1 contains a patch for th", "references": ["https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-9jgg-88mc-972h", "https://github.com/webpack/webpack-dev-server/commit/5c9378bb01276357d7af208a0856ca2163db188e", "https://github.com/webpack/webpack-dev-server/commit/72efaab83381a0e1c4914adf401cbd210b7de7eb"], "fixes": ["5.2.1"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}, {"id": "CVE-2025-30359", "noindex": false, "published": "2025-06-03T17:39:16.531Z", "modified": "2025-06-03T17:50:03.130Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N", "severity": "medium", "epss": 0.00573, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2025-30359", "title": "webpack-dev-server users' source code may be stolen when they access a malicious web site", "description": "webpack-dev-server allows users to use webpack with a development server that provides live reloading. Prior to version 5.2.1, webpack-dev-server users' source code may be stolen when they access a malicious web site. Because the request for classic script by a script tag is not subject to same origin policy, an attacker can inject a malicious script in their site and run the script. Note that the attacker has to know the port and the output entrypoint script path. Combined with prototype pollution, the attacker can get a reference to the webpack runtime variables. By using `Function::toString` against the values in `__webpack_modules__`, the", "references": ["https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-4v9v-hfq4-rm2v", "https://github.com/webpack/webpack-dev-server/commit/d2575ad8dfed9207ed810b5ea0ccf465115a2239", "https://nvd.nist.gov/vuln/detail/CVE-2025-30359"], "fixes": ["5.2.1"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}, {"id": "CVE-2018-14732", "noindex": false, "published": "2018-09-21T17:00:00.000Z", "modified": "2024-08-05T09:38:13.243Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.02486, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2018-14732", "title": "CVE-2018-14732", "description": "An issue was discovered in lib/Server.js in webpack-dev-server before 3.1.6. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:8080/ connection from any origin.", "references": ["https://github.com/webpack/webpack-dev-server/issues/1445", "https://blog.cal1.cn/post/Sniffing%20Codes%20in%20Hot%20Module%20Reloading%20Messages", "https://github.com/webpack/webpack-dev-server/commit/f18e5adf123221a1015be63e1ca2491ca45b8d10"], "fixes": ["3.1.11"], "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}]}], "total": 7, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "webpack-dev-server", "path": "vulns/npm/webpack-dev-server", "ecosystem": "npm"}], "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": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2026-07-06T15:54:51.519Z", "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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IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE."}, {"id": "linux-kernel", "name": "Linux kernel releases", "url": "https://www.kernel.org/", "license": "CC-BY-SA-4.0", "terms_url": "https://www.kernel.org/legal.html", "notice": "Copyright (C) 1997-2014 by The Linux Kernel Organization, Inc."}]}