CVE-2026-54037

Name: CVE-2026-54037
Creator: NVD / NIST
Published: 2026-06-25T17:16:41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10

Last modified Jun 25, 2026

CVE-2026-54037 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2025-7105 added forkIpLimiter and forkUserLimiter rate limiters to POST /api/convos/fork to prevent rapid-fire conversation duplication.

Description

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.4-rc1, the fix for CVE-2025-7105 added forkIpLimiter and forkUserLimiter rate limiters to POST /api/convos/fork to prevent rapid-fire conversation duplication. However, the POST /api/convos/duplicate endpoint — which is in the same file and performs the exact same expensive database operations — was not given any rate limiter. An authenticated user can bypass the CVE-2025-7105 fix by using /duplicate instead of /fork to exhaust server resources. This vulnerability is fixed in 0.8.4-rc1.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 3.0

/10

Weakness Enumeration

CWE-770

References

https://github.com/danny-avila/LibreChat/security/advisories/GHSA-g445-9wq6-jf3v

Timeline

Published: Jun 25, 2026
Last Modified: Jun 25, 2026
Status: Undergoing Analysis

Frequently Asked Questions

What is CVE-2026-54037?

How severe is CVE-2026-54037?

CVE-2026-54037 has a CVSS score of 6.5/10 (MEDIUM severity).

How do I fix CVE-2026-54037?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-54037?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST