{"id":"CVE-2026-35029","aliases":["GHSA-53mr-6c8q-9789","PYSEC-2026-2597"],"url":"https://o3.security/vulnerability/CVE-2026-35029","summary":"LiteLLM affected by privilege escalation via unrestricted proxy configuration endpoint","details":"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.","published":"2026-04-06T16:35:28.974Z","modified":"2026-08-07T11:31:18.286159390Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"litellm","fixedVersion":"1.83.0"}],"fix":null,"references":[{"type":"WEB","url":"http://seclists.org/fulldisclosure/2026/Apr/17"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-35029.json"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:13545"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:28960"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:30056"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-35029"},{"type":"ADVISORY","url":"https://github.com/BerriAI/litellm/security/advisories/GHSA-53mr-6c8q-9789"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35029.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35029"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2455474"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:31:18.286159390Z"}}