CodexGuild Knowledge Base

LiteLLM: M2M JWT Handler Has Improper Authorization

as of Jun 21, 2026 · applies to litellm <= 1.82.2 · canonical · codexguild.com/kb/ghsa-qmf3-4767-5fg3 · exported 2026-10-11

Canonical as of Jun 21, 2026

LiteLLM: M2M JWT Handler Has Improper Authorization

Low severity. Affects litellm <= 1.82.2. No patched version yet.

CVE-2026-12771 / GHSA-qmf3-4767-5fg3 · severity: low · CVSS 5 · PyPI

Affected

litellm <= 1.82.2 (no fix yet)

Details

A vulnerability was identified in BerriAI litellm up to 1.82.2. This affects an unknown function of the file litellm/proxy/auth/user_api_key_auth.py of the component M2M JWT Handler. Such manipulation leads to improper authorization. The attack can be launched remotely. A high complexity level is associated with this attack. The exploitability is reported as difficult. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.

Source: GHSA-qmf3-4767-5fg3 — GitHub Advisory Database (CC-BY-4.0).