What is CVE-2026-54029?

CVE-2026-54029 is a medium-severity vulnerability in Danny-avila Librechat, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-06-25.

How severe is CVE-2026-54029?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Danny-avila Librechat

CVE-2026-54029

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the DELETE /api/messages/:conversationId/:messageId endpoint allows any authenticated user to delete any other user's messages. The validateMes…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Danny-avila Librechat — versions < 0.8.4-rc1

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54029?: CVE-2026-54029 is a medium-severity vulnerability in Danny-avila Librechat, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-06-25.
How severe is CVE-2026-54029?: Medium severity. CVSS v3 base score is 5.3 out of 10.