GitHub Advisoryadvisory · PyPI
GHSA-53mr-6c8q-9789 LiteLLM: Privilege escalation via unrestricted proxy configuration endpoint
HIGH
Official page ↗
- Aliases
- CVE-2026-35029
- Ecosystem
- PyPI
- Packages
- litellm
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N
- Weaknesses
- CWE-863
- Reviewed
- 2026-04-03
Affected packages
• PyPI litellm: < 1.83.0 → fixed in 1.83.0
Description
Impact
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 do the following:
• 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
• Take over other priveleged accounts by overwriting UI_USERNAME and UI_PASSWORD environment variables
Patches
Fixed in v1.83.0. The endpoint now requires `proxy_admin` role.
Workarounds
Restrict API key distribution. There is no configuration-level workaround.
Related
Alias · CVE (1)
- CVE-2026-35029 LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. vulnerability
Weakness · CWE (1)
- CWE-863 Incorrect Authorization weakness