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CVE-2026-42456

AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (IDOR)

Published: May 8, 2026Updated: May 18, 2026 Sources: CVE List NVDCWE-200
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.3%
Top 78.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200CWE-639

Affected Products

anything-llmMintplex-LabsAI / ML / llm-serving-inference
anythingllmmintplexlabs
On-premWeb App
AI / ML / llm-serving-inference
mintplex-labscommercialAI / MLaka mintplex-labs/anything-llm, anything-llm, vector-admin
mintplexlabscommercialAI / MLaka anythingllm, anything-llm, anythingllm desktop

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Collection
Initial Access
View detailed technique mapping

References

https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-jwqg-jfg3-x5vv
github.com
https://github.com/Mintplex-Labs/anything-llm/commit/4f3f77119d342e5489d1ba7533ad6d51bdcd565f
github.com
https://github.com/Mintplex-Labs/anything-llm/releases/tag/v1.12.1
github.com

Timeline

Published
May 8, 2026
Last Updated
May 18, 2026

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