What is CVE-2026-54030?

CVE-2026-54030 is a high-severity vulnerability in Danny-avila Librechat, classified under Origin Validation Error. CVSS score: 8.0/10. Published 2026-06-25.

How severe is CVE-2026-54030?

High severity. CVSS v3 base score is 8.0 out of 10.

Vulnerability in Danny-avila Librechat

CVE-2026-54030

LibreChat is an enhanced ChatGPT clone that supports multiple AI providers. Prior to 0.8.5, LibreChat's MCP OAuth implementation does not validate that the resource parameter from OAuth Protected Resource metadata (RFC 9728) matches the co…

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.

Affected products

Danny-avila Librechat — versions < 0.8.5

Weakness classification (CWE)

CWE-346 — Origin Validation Error

References

https://github.com/danny-avila/LibreChat/security/advisories/GHSA-gvpj-vm2f-2m23 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54030?: CVE-2026-54030 is a high-severity vulnerability in Danny-avila Librechat, classified under Origin Validation Error. CVSS score: 8.0/10. Published 2026-06-25.
How severe is CVE-2026-54030?: High severity. CVSS v3 base score is 8.0 out of 10.