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CVE-2026-42456

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

Medium4.3EPSS 0.30%
Published
Updated
Reserved
Assigned by
GitHub_M

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.

Scores

CVSS scores of CVE-2026-42456, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1Medium4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVDNVD · Analyzed3.1Medium4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS (exploitation in 30 days)
0.30% · top 77% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

Affected products

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .