| Component | LiteLLM |
| Severity | high (CVSS 8.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Published (NVD) | 2026-04-06 |
| Last modified | 2026-07-15 |
| Affected versions | litellm < 1.83.0 |
| Fixed in | 1.83.0 |
| Weakness | CWE-863CWE-425 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade LiteLLM to
1.83.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-35029
- 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
Read more
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