{"id":"CVE-2026-35029","aliases":["GHSA-53mr-6c8q-9789","PYSEC-2026-2597"],"title":"LiteLLM: Privilege escalation via unrestricted proxy configuration endpoint","summary":"LiteLLM: Privilege escalation via unrestricted proxy configuration endpoint","severity":"high","vendor":"litellm","product":"litellm","ecosystem":"pip","affected":["litellm < 1.83.0"],"patched":["litellm 1.83.0"],"published":"2026-04-03","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:43.006877910Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-53mr-6c8q-9789","references":[{"url":"https://github.com/BerriAI/litellm/security/advisories/GHSA-53mr-6c8q-9789"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35029"},{"url":"https://github.com/BerriAI/litellm"},{"url":"http://seclists.org/fulldisclosure/2026/Apr/17"}],"tags":["osv","pip","exploit-available"],"epss":0.30374,"epssPercentile":0.98151,"exploits":{"github":1,"githubRepos":["https://github.com/learner202649/CVE-2026-35029-PoC"],"nuclei":["CVE-2026-35029"],"checkedAt":"2026-09-24T07:53:02.720Z"},"exploitAvailable":true,"ingestedAt":"2026-07-13T18:57:52.948Z","slug":"CVE-2026-35029","body":"## Overview\n\n### 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.\n\n## Affected packages\n\n- `litellm < 1.83.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `litellm 1.83.0`","depth":"midnight","depthScore":59,"depthScoreParts":{"impact":41.3,"likelihood":6.1,"exploitation":12,"ransomware":0},"changes":[{"seq":203834,"id":"CVE-2026-35029","ts":1789489105988,"field":"epss","old":"0.25068","new":"0.30374"},{"seq":5134,"id":"CVE-2026-35029","ts":1788887250302,"field":"exploit_available","old":"false","new":"true"},{"seq":4017,"id":"CVE-2026-35029","ts":1788886366092,"field":"exploit_available","old":"true","new":"false"},{"seq":2828,"id":"CVE-2026-35029","ts":1788883032450,"field":"exploit_available","old":"false","new":"true"},{"seq":1857,"id":"CVE-2026-35029","ts":1788882435689,"field":"exploit_available","old":"true","new":"false"},{"seq":955,"id":"CVE-2026-35029","ts":1788881869610,"field":"exploit_available","old":"false","new":"true"}]}