LibreChat/api/server/services
Danny Avila f67bbb2bc5
🧹 fix: Sanitize Artifact Filenames in Code Execution Output (#12222)
* fix: sanitize artifact filenames to prevent path traversal in code output

* test: Mock sanitizeFilename function in process.spec.js to return the original filename

- Added a mock implementation for the `sanitizeFilename` function in the `process.spec.js` test file to return the original filename, ensuring that tests can run without altering the filename during the testing process.

* fix: use path.relative for traversal check, sanitize all filenames, add security logging

- Replace startsWith with path.relative pattern in saveLocalBuffer, consistent
  with deleteLocalFile and getLocalFileStream in the same file
- Hoist sanitizeFilename call before the image/non-image branch so both code
  paths store the sanitized name in MongoDB
- Log a warning when sanitizeFilename mutates a filename (potential traversal)
- Log a specific warning when saveLocalBuffer throws a traversal error, so
  security events are distinguishable from generic network errors in the catch

* test: improve traversal test coverage and remove mock reimplementation

- Remove partial sanitizeFilename reimplementation from process-traversal tests;
  use controlled mock returns to verify processCodeOutput wiring instead
- Add test for image branch sanitization
- Use mkdtempSync for test isolation in crud-traversal to avoid parallel worker
  collisions
- Add prefix-collision bypass test case (../user10/evil vs user1 directory)

* fix: use path.relative in isValidPath to prevent prefix-collision bypass

Pre-existing startsWith check without path separator had the same class
of prefix-collision vulnerability fixed in saveLocalBuffer.
2026-03-14 03:09:26 -04:00
..
__tests__ 🗝️ feat: Credential Variables for DB-Sourced MCP Servers (#12044) 2026-03-03 18:02:37 -05:00
Artifacts 🪄 fix: Code Block handling in Artifact Updates (#11417) 2026-01-20 08:45:43 -05:00
Config 🗃️ refactor: Separate Tool Cache Namespace for Blue/Green Deployments (#11738) 2026-02-11 22:20:43 -05:00
Endpoints 💸 fix: Model Identifier Edge Case in Agent Transactions (#11988) 2026-02-28 09:06:32 -05:00
Files 🧹 fix: Sanitize Artifact Filenames in Code Execution Output (#12222) 2026-03-14 03:09:26 -04:00
Runs 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00
start 🦥 refactor: Event-Driven Lazy Tool Loading (#11588) 2026-02-01 08:50:57 -05:00
Threads 🔧 chore: Update ESLint Config & Run Linter (#10986) 2025-12-15 17:55:25 -05:00
Tools 🩹 fix: MCP Server Recovery from Startup Inspection Failures (#12145) 2026-03-08 21:49:04 -04:00
ActionService.js 🛡️ fix: Implement TOCTOU-Safe SSRF Protection for Actions and MCP (#11722) 2026-02-11 22:09:58 -05:00
ActionService.spec.js 🛜 refactor: Streamline App Config Usage (#9234) 2025-08-26 12:10:18 -04:00
AssistantService.js 🪦 refactor: Remove Legacy Code (#10533) 2025-12-11 16:36:12 -05:00
AuthService.js 🥠 refactor: Always set OIDC refresh token cookie to survive session expiry (#11810) 2026-02-16 14:42:19 -05:00
AuthService.spec.js 🔒 fix: Secure Cookie Localhost Bypass and OpenID Token Selection in AuthService (#11782) 2026-02-13 10:35:51 -05:00
cleanup.js 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00
createRunBody.js feat: Add Current Datetime to Assistants (v1/v2) (#4952) 2024-12-11 15:26:18 -05:00
GraphApiService.js 👫 fix: Update Entra ID group retrieval to use getMemberGroups and add pagination support (#10199) 2025-10-26 21:58:29 -04:00
GraphApiService.spec.js 🧵 refactor: Migrate Endpoint Initialization to TypeScript (#10794) 2025-12-11 16:37:16 -05:00
GraphTokenService.js 🔒 refactor: graphTokenController to use federated access token for OBO assertion (#11893) 2026-02-21 18:03:39 -05:00
initializeMCPs.js 🧰 fix: Allow UI-based MCP Management without Configured Servers (#11158) 2025-12-30 18:55:11 -05:00
initializeMCPs.spec.js v0.8.3-rc1 (#11856) 2026-02-18 20:36:03 -05:00
initializeOAuthReconnectManager.js 💫 feat: MCP OAuth Auto-Reconnect (#9646) 2025-09-17 16:49:36 -04:00
MCP.js 🧪 chore: MCP Reconnect Storm Follow-Up Fixes and Integration Tests (#12172) 2026-03-10 17:44:13 -04:00
MCP.spec.js 🧪 chore: MCP Reconnect Storm Follow-Up Fixes and Integration Tests (#12172) 2026-03-10 17:44:13 -04:00
PermissionService.js 🛸 feat: Remote Agent Access with External API Support (#11503) 2026-01-28 17:44:33 -05:00
PermissionService.spec.js 🏗️ feat: Dynamic MCP Server Infrastructure with Access Control (#10787) 2025-12-11 16:38:37 -05:00
PluginService.js 🔌 feat: MCP Reinitialization and OAuth in UI (#8598) 2025-07-22 22:52:45 -04:00
ToolService.js 🗝️ feat: Credential Variables for DB-Sourced MCP Servers (#12044) 2026-03-03 18:02:37 -05:00
twoFactorService.js 🔑 fix: Require OTP Verification for 2FA Re-Enrollment and Backup Code Regeneration (#12223) 2026-03-14 01:51:31 -04:00