Auth bypass in Danny-Avila Librechat
CVE-2025-69220
LibreChat is a ChatGPT clone with additional features. Version 0.8.1-rc2 does not enforce proper access control for file uploads to an agents file context and file search. An authenticated attacker with access to the agent ID can change the behavior of arbitrary agents by uploading new files to the file context or file search, even if they have no permissions for this agent. This issue is fixed in version 0.8.2-rc2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.003 (23.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Danny-Avila Librechat — versions >= 0.8.1-rc2, < 0.8.2-rc2
- Librechat — versions 0.8.1
Weakness classification (CWE)
References
- github.com/danny-avila/LibreChat/security/advisories/GHSA-xcmf-rpmh-hg59 (Exploit, Vendor Advisory)
- github.com/danny-avila/LibreChat/commit/4b9c6ab1cb9de626736de700c7981f38be08d237 (Patch)
- cwe.mitre.org/data/definitions/284.html (Not Applicable)
- cwe.mitre.org/data/definitions/862.html (Not Applicable)
- github.com/danny-avila/LibreChat/releases/tag/v0.8.2-rc2 (Release Notes)
- owasp.org/Top10/A01_2021-Broken_Access_Control (Not Applicable)
- owasp.org/www-project-web-security-testing-guide/v42/4-Web_Application_Security… (Technical Description)
- raw.githubusercontent.com/OWASP/ASVS/v5.0.0/5.0/OWASP_Application_Security_Veri… (Technical Description)
Frequently asked questions
- What is CVE-2025-69220?
- CVE-2025-69220 is a high-severity vulnerability in Danny-Avila Librechat, classified under Improper Access Control. CVSS score: 7.1/10. Published 2026-01-07.
- How severe is CVE-2025-69220?
- High severity. CVSS v3 base score is 7.1 out of 10.