MEDIUM

CVE-2026-54037

Librechat Librechat 2026-06-25 CVSS v3.1

CVSS

6.5

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.

Weakness (CWE)

CWE-770 Resource Allocation Without Limits

EPSS Score

0.51%

Probability of exploitation in next 30 days

42.7th percentile

References

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

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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