CVE-2026-42456
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk22th percentile - higher than 22% of all known CVEs
Summary
An IDOR vulnerability in AnythingLLM before version 1.12.1 allows an authenticated user to access another user's assistant response in audio form. The GET /api/workspace/:slug/tts/:chatId endpoint does not enforce chat ownership, only workspace membership.
Risk Assessment
Exposure of private assistant responses in audio form, potentially leading to leakage of confidential information.
Recommendation
Update AnythingLLM to version 1.12.1 or later, which includes a fix for the IDOR vulnerability.
Original NVD description (English source)
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.