Description
LiteLLM prior to 1.83.10 allows a user to modify their own user_role via the /user/update endpoint. While the endpoint correctly restricts users to updating only their own account, it does not restrict which fields may be changed. A user who can reach this endpoint can set their role to proxy_admin, gaining full administrative access to LiteLLM including all users, teams, keys, models, and prompt history. Users with the org_admin role have legitimate access to this endpoint and can exploit this vulnerability without chaining any additional flaw.
Affected products
litellm: litellm
References10
- github.com/BerriAI/litellm/commit/128d32d2494b759c5d15da3452452… Patch
- github.com/BerriAI/litellm/commit/e6f18ce75b111c9b93dc15c72894c… Patch
- github.com/BerriAI/litellm/pull/25541 Issue TrackingPatch
- gist.github.com/13ph03nix/9ec616e1fdc77b3673509c60206e827f ExploitMitigationThird Party Advisory
- huntr.com/bounties/8e75edfb-ff05-4e63-bfca-2d93d03fb3b9 ExploitThird Party Advisory
- github.com/BerriAI/litellm/releases/tag/v1.83.10-stable Release Notes
- www.obsidiansecurity.com/blog/litellm-privilege-escalation-rce
- www.vulncheck.com/advisories/litellm-privilege-escalation-via-u… Third Party Advisory
- access.redhat.com/security/cve/CVE-2026-47102
- bugzilla.redhat.com/show_bug.cgi?id=2480634
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 4.0
-
8.7
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 1% percentile: 52 · as of 14 November 2026
- CWE
- CWE-863CWE-915
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