Vulnerability Description
AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to version 1.12.1, GET /api/workspace/:slug/tts/:chatId in AnythingLLM returns the text-to-speech audio for another user's chat response within the same workspace because the route validates workspace membership but does not enforce ownership of the targeted chat row. As a result, an authenticated user can access another user's private assistant response in audio form if the chatId is known or guessed. This constitutes an insecure direct object reference (IDOR) affecting private chat response content exposed through the TTS endpoint. This issue has been patched in version 1.12.1.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mintplexlabs | Anythingllm | < 1.12.1 |
Related Weaknesses (CWE)
References
- https://github.com/Mintplex-Labs/anything-llm/commit/4f3f77119d342e5489d1ba7533aPatch
- https://github.com/Mintplex-Labs/anything-llm/releases/tag/v1.12.1ProductRelease Notes
- https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-jwqg-jfg3ExploitMitigationVendor Advisory
- https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-jwqg-jfg3ExploitMitigationVendor Advisory
FAQ
What is CVE-2026-42456?
CVE-2026-42456 is a vulnerability with a CVSS score of 4.3 (MEDIUM). AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to version 1.12.1, GET /api/workspace/:slug/tts/:chatId in AnythingLLM...
How severe is CVE-2026-42456?
CVE-2026-42456 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42456?
Check the references section above for vendor advisories and patch information. Affected products include: Mintplexlabs Anythingllm.