Node.js: уязвимости стека · Страница 135

LiquidJS: memoryLimit Bypass through Negative Range Values Leads to Process Crash

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, LiquidJS's `memoryLimit` security mechanism can be completely bypassed by using reverse range expressions (e.g., `(100000000..1)`), allowing an attacker to allocate unlimited memory. Combined with a string flattening operation (e.g., `replace` filter), this causes a V8 Fatal error that crashes the Node.js process, resulting in complete denial of service from a single HTTP request. Version 10.25.1 patches the issue.

LiquidJS has Exponential Memory Amplification through its replace_first Filter $& Pattern

LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to version 10.25.1, the `replace_first` filter in LiquidJS uses JavaScript's `String.prototype.replace()` which interprets `$&` as a back reference to the matched substring. The filter only charges `memoryLimit` for the input string length, not the amplified output. An attacker can achieve exponential memory amplification (up to 625,000:1) while staying within the `memoryLimit` budget, leading to denial of service. Version 10.25.1 patches the issue.

• Обновитесь до 10.25.1

smol-toml: Denial of Service via TOML documents containing thousands of consecutive commented lines

### Summary An attacker can send a maliciously crafted TOML to cause the parser to crash, because of a stack overflow caused by thousands of consecutive commented lines. The library uses recursion internally while parsing to skip over commented lines, which can be exploited to crash an application that is processing arbitrary TOML documents. ### Proof of concept ```js require("smol-toml").parse('# comment\n'.repeat(8000) + 'key = "value"') ``` ### Impact Applications which parse arbitrary TOML documents may suffer availability issues if they receive malicious input. If uncaught, the crash may cause the application itself to crash. The impa

• Обновитесь до 1.6.1

n8n Vulnerable to LDAP Filter Injection in LDAP Node

n8n is an open source workflow automation platform. Prior to versions 1.123.27, 2.13.3, and 2.14.1, a flaw in the LDAP node's filter escape logic allowed LDAP metacharacters to pass through unescaped when user-controlled input was interpolated into LDAP search filters. In workflows where external user input is passed via expressions into the LDAP node's search parameters, an attacker could manipulate the constructed filter to retrieve unintended LDAP records or bypass authentication checks implemented in the workflow. Exploitation requires a specific workflow configuration. The LDAP node must be used with user-controlled input passed via expr

• Обновитесь до 1.123.27
• Обновитесь до 2.13.3
• Обновитесь до 2.14.1

n8n Vulnerable to XSS via Binary Data Inline HTML Rendering

n8n is an open source workflow automation platform. Prior to versions 1.123.27, 2.13.3, and 2.14.1, an authenticated user with permission to create or modify workflows could craft a workflow that produces an HTML binary data object without a filename. The `/rest/binary-data` endpoint served such responses inline on the n8n origin without `Content-Disposition` or `Content-Security-Policy` headers, allowing the HTML to render in the browser with full same-origin JavaScript access. By sending the resulting URL to a higher-privileged user, an attacker could execute JavaScript in the victim's authenticated session, enabling exfiltration of workflo

• Обновитесь до 1.123.27
• Обновитесь до 2.13.3
• Обновитесь до 2.14.1

n8n's Source Control SSH Configuration Uses StrictHostKeyChecking=no

n8n is an open source workflow automation platform. Prior to version 2.5.0, when the Source Control feature is configured to use SSH, the SSH command used for git operations explicitly disabled host key verification. A network attacker positioned between the n8n instance and the remote Git server could intercept the connection and present a fraudulent host key, potentially injecting malicious content into workflows or intercepting repository data. This issue only affects instances where the Source Control feature has been explicitly enabled and configured to use SSH (non-default). The issue has been fixed in n8n version 2.5.0. Users should up

• Обновитесь до 2.5.0

n8n Has External Secrets Authorization Bypass in Credential Saving

n8n is an open source workflow automation platform. Prior to versions 2.6.4 and 1.123.23, an authenticated user without permission to list external secrets could reference a secret by the external name in a credential and retrieve its plaintext value when saving the credential. This bypassed the `externalSecret:list` permission check and allowed access to secrets stored in connected vaults without admin or owner privileges. This issue requires the instance to have an external secrets vault configured. The attacker must know or be able to guess the name of a target secret. The issue has been fixed in n8n versions 1.123.23 and 2.6.4. Users shou

• Обновитесь до 1.123.23
• Обновитесь до 2.6.4

n8n Has Authorization Bypass in OAuth Callback via N8N_SKIP_AUTH_ON_OAUTH_CALLBACK

n8n is an open source workflow automation platform. Prior to version 2.8.0, when the `N8N_SKIP_AUTH_ON_OAUTH_CALLBACK` environment variable is set to `true`, the OAuth callback handler skips ownership verification of the OAuth state parameter. This allows an attacker to trick a victim into completing an OAuth flow against a credential object the attacker controls, causing the victim's OAuth tokens to be stored in the attacker's credential. The attacker can then use those tokens to execute workflows in their name. This issue only affects instances where `N8N_SKIP_AUTH_ON_OAUTH_CALLBACK=true` is explicitly configured (non-default). The issue ha

• Обновитесь до 2.8.0

n8n Vulnerable to SQL Injection in Data Table Node via orderByColumn Expression

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.26, an authenticated user with permission to create or modify workflows could exploit a SQL injection vulnerability in the Data Table Get node. On default SQLite DB, single statements can be manipulated and the attack surface is practically limited. On PostgreSQL deployments, multi-statement execution is possible, enabling data modification and deletion. The issue has been fixed in n8n versions 1.123.26, 2.13.3, and 2.14.1. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possibl

• Обновитесь до 1.123.26
• Обновитесь до 2.13.3
• Обновитесь до 2.14.1

n8n Vulnerable to Prototype Pollution in XML & GSuiteAdmin node parameters lead to RCE

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with permission to create or modify workflows could exploit a prototype pollution vulnerability in the XML and the GSuiteAdmin nodes. By supplying a crafted parameters as part of node configuration, an attacker could write attacker-controlled values onto `Object.prototype`. An attacker could use this prototype pollution to achieve remote code execution on the n8n instance. The issue has been fixed in n8n versions 2.14.1, 2.13.3, and 1.123.27. Users should upgrade to one of these versions or later to remediate the vulnerabi

• Обновитесь до 1.123.27
• Обновитесь до 2.13.3
• Обновитесь до 2.14.1

@grackle-ai/server JSON.parse lacks try-catch logic in its gRPC Service AdapterConfig Handling

### Impact `JSON.parse(env.adapterConfig)` is called without error handling in three locations within the gRPC service. While the data originates from the server's own SQLite database and should always be valid JSON, database corruption, migration errors, or unexpected state could cause an unhandled exception that crashes the gRPC handler. Additionally, the parsed result is cast as `Record<string, unknown>` and passed to adapter methods without property validation, creating a theoretical prototype pollution surface if the database is compromised. **Affected code:** - `packages/server/src/grpc-service.ts:415` — `reconnectOrProvision` handle

• Обновитесь до 0.70.6

@grackle-ai/server has a Missing Secure Flag on Session Cookie

### Impact The session cookie is set with `HttpOnly; SameSite=Lax; Path=/` but does not include the `Secure` flag. This means the cookie will be sent over plain HTTP connections. Since the server binds to `127.0.0.1` by default and uses HTTP (not HTTPS), this is acceptable for localhost use. However, when `--allow-network` is used to bind to `0.0.0.0`, cookies could be transmitted over insecure network connections and intercepted by an attacker. **Affected code:** - `packages/server/src/session.ts:76` — cookie string lacks `; Secure` attribute ### Patches 0.70.5 **Fix:** Conditionally add `; Secure` when served over HTTPS or when `--all

• Обновитесь до 0.70.5

n8n: LDAP Email-Based Account Linking Allows Privilege Escalation and Account Takeover

n8n is an open source workflow automation platform. Prior to versions 2.4.0 and 1.121.0, when LDAP authentication is enabled, n8n automatically linked an LDAP identity to an existing local account if the LDAP email attribute matched the local account's email. An authenticated LDAP user who could control their own LDAP email attribute could set it to match another user's email — including an administrator's — and upon login gain full access to that account. The account linkage persisted even if the LDAP email was later reverted, resulting in a permanent account takeover. LDAP authentication must be configured and active (non-default). The issu

• Обновитесь до 1.121.0
• Обновитесь до 2.4.0

@grackle-ai/server has Missing Content-Security-Policy and X-Frame-Options Headers

### Impact The HTTP server does not set `Content-Security-Policy`, `X-Frame-Options`, or `X-Content-Type-Options` headers on any response. This reduces defense-in-depth against XSS, clickjacking, and MIME-sniffing attacks. While the current XSS attack surface is small (React-markdown is configured safely, no `dangerouslySetInnerHTML`, Vite does not generate source maps), the absence of these headers means any future XSS vulnerability would have no secondary defense layer. **Affected code:** - `packages/server/src/index.ts` — all `res.writeHead()` calls only set `Content-Type`, with no security headers ### Patches 0.70.4 **Fix:** Add sec

• Обновитесь до 0.70.4

@grackle-ai/powerline Runs Without Authentication by Default

### Impact When `--token` is not provided and `GRACKLE_POWERLINE_TOKEN` is not set, the PowerLine gRPC server runs with **zero authentication**. A warning is logged (`"NO AUTH (development only)"`) but nothing prevents deployment in this state. Any client that can reach the PowerLine port can spawn agent sessions, access credential tokens, and execute code. The default binding is `127.0.0.1` (loopback only), which limits exposure to the local machine. However, if PowerLine is accidentally exposed on a network (e.g., in a container or via port forwarding), the impact is critical. **Affected code:** - `packages/powerline/src/index.ts:46` — t

• Обновитесь до 0.70.1

@grackle-ai/server has Missing WebSocket Origin Header Validation

### Impact The WebSocket upgrade handler in the server validates authentication (API key token or session cookie) but does not check the `Origin` header. A malicious webpage on a different origin could initiate a WebSocket connection to `ws://localhost:3000/ws` if it can leverage the user's session cookie (which is `SameSite=Lax`, allowing top-level navigations). This enables **cross-origin WebSocket hijacking** — if a user visits a malicious site while a Grackle session is active, the attacker's page could open a WebSocket and subscribe to real-time events (session output, task updates, environment state). **Affected code:** - `packages/s

• Обновитесь до 0.70.3

@grackle-ai/mcp has a workspace authorization bypass in its knowledge_search MCP tool

### Impact The `knowledge_search` and `knowledge_get_node` MCP tools are included in `SCOPED_TOOLS` (visible to scoped agents) but their handlers do not receive `authContext` and do not enforce workspace scoping. A scoped agent in Workspace A can supply an arbitrary `workspaceId` parameter to search or retrieve knowledge graph nodes from Workspace B, bypassing workspace isolation boundaries. This is a **cross-workspace data leakage** vulnerability affecting any deployment where multiple workspaces contain sensitive knowledge graph data and scoped agents are used. **Affected code:** - `packages/mcp/src/tools/knowledge.ts:146-169` (knowledge

• Обновитесь до 0.70.2

@grackle-ai/server: Unescaped Error String in renderPairingPage() HTML Template

### Impact The `renderPairingPage()` function embeds the `error` parameter directly into HTML without escaping: ```typescript const errorHtml = error ? `<p style="color:#e74c3c">${error}</p>` : ""; ``` All current call sites pass hardcoded strings, so this is **not exploitable today**. However, the function is architecturally fragile — if a future code change passes user-controlled or dynamic content into the error parameter, it would create an XSS vulnerability. The `renderAuthorizePage()` function in the same file correctly uses `escapeHtml()` for dynamic content, making this an inconsistency. **Affected code:** - `packages/server/src/i

• Обновитесь до 0.70.1

n8n Vulnerable to Credential Theft via Name-Based Resolution and Permission Checker Bypass in Community Edition

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with the `global:member` role could exploit chained authorization flaws in n8n's credential pipeline to steal plaintext secrets from generic HTTP credentials (`httpBasicAuth`, `httpHeaderAuth`, `httpQueryAuth`) belonging to other users on the same instance. The attack abuses a name-based credential resolution path that does not enforce ownership or project scope, combined with a bypass in the credentials permission checker that causes generic HTTP credential types to be skipped during pre-execution validation. Together, th

• Обновитесь до 1.123.27
• Обновитесь до 2.13.3
• Обновитесь до 2.14.1

n8n Has Multiple Remote Code Execution Vulnerabilities in Merge Node AlaSQL SQL Mode

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.26, an authenticated user with permission to create or modify workflows could use the Merge node's "Combine by SQL" mode to read local files on the n8n host and achieve remote code execution. The AlaSQL sandbox did not sufficiently restrict certain SQL statements, allowing an attacker to access sensitive files on the server or even compromise the instance. The issue has been fixed in n8n versions 2.14.1, 2.13.3, and 1.123.26. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possi

• Обновитесь до 1.123.27
• Обновитесь до 2.13.3
• Обновитесь до 2.14.1