{"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":"### Impact\n\nThe `/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:\n\n  - Modify proxy configuration and environment variables\n  - Register custom pass-through endpoint handlers pointing to attacker-controlled Python code, achieving remote code execution\n  - Read arbitrary server files by setting UI_LOGO_PATH and fetching via /get_image\n  - Take over other priveleged accounts by overwriting UI_USERNAME and UI_PASSWORD environment variables\n\n### Patches\n\nFixed in v1.83.0. The endpoint now requires `proxy_admin` role.\n\n### Workarounds\n\nRestrict API key distribution. There is no configuration-level workaround.","published":"2026-04-06T16:35:28.974Z","modified":"2026-08-12T03:51:09.551415968Z","cvss":null,"epss":{"score":0.30374,"percentile":0.98128,"asOf":"2026-09-15"},"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"},{"type":"PACKAGE","url":"https://github.com/BerriAI/litellm"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:09.551415968Z"}}