LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.83.0, the /config/update endpoint does not enforce admin role authorization. A user who is already authenticated into the platform can then use this endpoint to modify proxy configuration and environment variables, register custom pass-through endpoint handlers pointing to attacker-controlled Python code, achieving remote code execution, read arbitrary server files by setting UI_LOGO_PATH and fetching via /get_image, and take over other privileged accounts by overwriting UI_USERNAME and UI_PASSWORD environment variables. Fixed in v1.83.0.
Fix
Public exploits 1
- learner202649/CVE-2026-35029-PoC PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
- https://github.com/BerriAI/litellm/security/advisories/GHSA-53mr-6c8q-9789 Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 8.7 · litellmNVD modified 2026-10-23 23:10
Affected (CPE criteria) 1
cpe:2.3:a:litellm:litellm:*:*:*:*:*:*:*:*
References 8
- https://github.com/BerriAI/litellm/security/advisories/GHSA-53mr-6c8q-9789 Mitigation, Vendor Advisory
- http://seclists.org/fulldisclosure/2026/Apr/17
- https://access.redhat.com/errata/RHSA-2026:13545
- https://access.redhat.com/errata/RHSA-2026:28960
- https://access.redhat.com/errata/RHSA-2026:30056
- https://access.redhat.com/security/cve/CVE-2026-35029
- https://bugzilla.redhat.com/show_bug.cgi?id=2455474
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35029.json