EUVD-2026-31345
GHSA-wpfp-gwwc-vwq6
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization logic validation
MITRE ATT&CK
1 technique across 1 tactic: Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – May 21, 2026
Privilege escalation in LiteLLM prior to 1.83.10 allows any authenticated user with access to the /user/update endpoint to elevate themselves to proxy_admin by including a user_role field in a self-update request. The endpoint enforces ownership (users can only update their own account) but fails to restrict which fields are mutable, granting full administrative control over users, teams, keys, models, and prompt history. Publicly available exploit code exists via a published huntr.com bounty writeup and gist PoC, though no public exploit identified as actively used in the wild at time of analysis.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in pypi
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Severity by source
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
Primary rating from Vendor (vulncheck).
CVSS VectorVendor: vulncheck
Lifecycle Timeline
1DescriptionCVE.org
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.
Executive ViewAI
LiteLLM versions prior to 1.83.10 contain a privilege escalation vulnerability in the /user/update endpoint with publicly available exploit code, allowing privilege escalation to proxy_admin status and complete control over user accounts, team management, API keys, model configuration, and system audit history. This represents a direct compromise of the governance and access control layer protecting your LLM infrastructure. Organizations using affected versions face immediate risk of unauthorized administrative access.
Within 24 hours: Identify all LiteLLM deployments and determine if affected versions (prior to 1.83.10) are running; immediately restrict /user/update endpoint access via firewall/WAF rules to authorized administrative accounts only and enable detailed API logging. Within 7 days: Audit all user accounts for unauthorized privilege escalations, review modification logs for suspicious activity, and implement application-level validation rejecting user_role field modifications in account self-updates. Within 30 days: Establish daily monitoring of vendor security advisories for patch release; execute immediate upgrade to version 1.83.10 or later when available.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict /user/update endpoint via reverse proxy/WAF to administrative network segments only; (2) Disable user self-update functionality if operationally feasible; (3) Implement application-level field validation rejecting user_role modifications in self-update requests; (4) Deploy real-time monitoring and alerting on privilege escalation events and all /user/update endpoint modifications; (5) Implement secondary approval requirements for administrative role assignments pending vendor patch availability.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
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