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CVE-2026-42456

4.3 · MEDIUM

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting.

Published May 8, 2026CWE-200EPSS 0.34%

Overview

CVE-2026-42456 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/Mintplex-Labs/anything-llm/commit/4f3f77119d342e5489d1ba7533ad6d51bdcd565fGitHubgithub.com/Mintplex-Labs/anything-llm/releases/tag/v1.12.1GitHubgithub.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-jwqg-jfg3-x5vvGitHubgithub.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-jwqg-jfg3-x5vv

How CyberStrike helps

Frequently asked questions

What is CVE-2026-42456?

CVE-2026-42456 is a medium-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-42456?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-42456?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-42456?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-42456 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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