high8.8
CVE-2026-35029
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | litellm | < 1.83.0 | 1.83.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Litellm | Litellm | before 1.83.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/BerriAI/litellm/security/advisories/GHSA-53mr-6c8q-9789
- 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
- https://github.com/advisories/GHSA-53mr-6c8q-9789
- https://nvd.nist.gov/vuln/detail/CVE-2026-35029