LibreChat/packages/api/src
Danny Avila 924be3b647
🛡️ fix: Implement TOCTOU-Safe SSRF Protection for Actions and MCP (#11722)
* refactor: better SSRF Protection in Action and Tool Services

- Added `createSSRFSafeAgents` function to create HTTP/HTTPS agents that block connections to private/reserved IP addresses, enhancing security against SSRF attacks.
- Updated `createActionTool` to accept a `useSSRFProtection` parameter, allowing the use of SSRF-safe agents during tool execution.
- Modified `processRequiredActions` and `loadAgentTools` to utilize the new SSRF protection feature based on allowed domains configuration.
- Introduced `resolveHostnameSSRF` function to validate resolved IPs against private ranges, preventing potential SSRF vulnerabilities.
- Enhanced tests for domain resolution and private IP detection to ensure robust SSRF protection mechanisms are in place.

* feat: Implement SSRF protection in MCP connections

- Added `createSSRFSafeUndiciConnect` function to provide SSRF-safe DNS lookup options for undici agents.
- Updated `MCPConnection`, `MCPConnectionFactory`, and `ConnectionsRepository` to include `useSSRFProtection` parameter, enabling SSRF protection based on server configuration.
- Enhanced `MCPManager` and `UserConnectionManager` to utilize SSRF protection when establishing connections.
- Updated tests to validate the integration of SSRF protection across various components, ensuring robust security measures are in place.

* refactor: WS MCPConnection with SSRF protection and async transport construction

- Added `resolveHostnameSSRF` to validate WebSocket hostnames against private IP addresses, enhancing SSRF protection.
- Updated `constructTransport` method to be asynchronous, ensuring proper handling of SSRF checks before establishing connections.
- Improved error handling for WebSocket transport to prevent connections to potentially unsafe addresses.

* test: Enhance ActionRequest tests for SSRF-safe agent passthrough

- Added tests to verify that httpAgent and httpsAgent are correctly passed to axios.create when provided in ActionRequest.
- Included scenarios to ensure agents are not included when no options are specified.
- Enhanced coverage for POST requests to confirm agent passthrough functionality.
- Improved overall test robustness for SSRF protection in ActionRequest execution.
2026-02-11 22:09:58 -05:00
..
acl 🏗️ feat: Dynamic MCP Server Infrastructure with Access Control (#10787) 2025-12-11 16:38:37 -05:00
agents 🎬 fix: Code Session Context In Event Driven Mode (#11673) 2026-02-07 03:09:55 -05:00
apiKeys 🛸 feat: Remote Agent Access with External API Support (#11503) 2026-01-28 17:44:33 -05:00
app 🛡️ fix: Preserve CREATE/SHARE/SHARE_PUBLIC Permissions with Boolean Config (#11647) 2026-02-05 15:06:53 +01:00
auth 🛡️ fix: Implement TOCTOU-Safe SSRF Protection for Actions and MCP (#11722) 2026-02-11 22:09:58 -05:00
cache 🌊 feat: Resumable LLM Streams with Horizontal Scaling (#10926) 2025-12-19 12:14:19 -05:00
cdn 🔃 refactor: Decouple Effects from AppService, move to data-schemas (#9974) 2025-10-05 06:37:57 -04:00
cluster 🐛 fix: Redis Cluster Bug + 🧪 Enhance Test Coverage (#10518) 2025-11-16 11:58:52 -05:00
crypto 🧵 refactor: Migrate Endpoint Initialization to TypeScript (#10794) 2025-12-11 16:37:16 -05:00
db 🔧 refactor: Centralize Collection Checks for Permissions Migration (#9565) 2025-09-10 20:40:58 -04:00
endpoints 🆔 fix: Atomic File Dedupe, Bedrock Tokens Fix, and Allowed MIME Types (#11675) 2026-02-07 13:26:18 -05:00
files 🎞️ feat: OpenRouter Audio/Video File Upload Support (#11070) 2025-12-25 13:23:29 -05:00
flow 🌊 feat: Resumable LLM Streams with Horizontal Scaling (#10926) 2025-12-19 12:14:19 -05:00
mcp 🛡️ fix: Implement TOCTOU-Safe SSRF Protection for Actions and MCP (#11722) 2026-02-11 22:09:58 -05:00
memory 🛂 feat: Payload limits and Validation for User-created Memories (#8974) 2025-08-10 14:46:16 -04:00
middleware 🔐 feat: Admin Auth. Routes with Secure Cross-Origin Token Exchange (#11297) 2026-01-28 17:44:31 -05:00
oauth 🧵 refactor: Migrate Endpoint Initialization to TypeScript (#10794) 2025-12-11 16:37:16 -05:00
prompts 🧵 refactor: Migrate Endpoint Initialization to TypeScript (#10794) 2025-12-11 16:37:16 -05:00
stream 🌊 fix: Prevent Truncations When Redis Resumable Streams Are Enabled (#11710) 2026-02-10 13:16:29 -05:00
tools 🔄 refactor: Sequential Event Ordering in Redis Streaming Mode (#11650) 2026-02-05 17:57:33 +01:00
types 🤖 feat: Claude Opus 4.6 - 1M Context, Premium Pricing, Adaptive Thinking (#11670) 2026-02-06 18:35:36 -05:00
utils 🤖 feat: Claude Opus 4.6 - 1M Context, Premium Pricing, Adaptive Thinking (#11670) 2026-02-06 18:35:36 -05:00
web 🔍 feat: Add Serper as Scraper Provider and Firecrawl Version Support (#9984) 2025-10-05 20:34:05 -04:00
index.ts 🛸 feat: Remote Agent Access with External API Support (#11503) 2026-01-28 17:44:33 -05:00