Advisory record · GHSA-qmf3-4767-5fg3

LiteLLM: M2M JWT Handler Has Improper Authorization

CVSS 2.3 LowEPSS 0.0043 · 37th percentile

Published by the GitHub Advisory Database at 21 Jun 2026, 03:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
litellmPyPI<=1.82.2No fixed version yet
Identifiers
GHSA-qmf3-4767-5fg3 · CVE-2026-12771 · PYSEC-2026-4075
Weakness (CWE)
CWE-266 · CWE-285
Published
21 Jun 2026
Updated
1 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

LiteLLM versions up to and including 1.82.2 are affected by an improper authorization flaw in the M2M JWT handler. The source describes the attack as remote and of high complexity, and it does not explain what an attacker gains beyond improper authorization. No fixed version is listed, and the source gives few other details.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
2.3 Low 4.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CNA (VulDB)
  • CISA KEV Not listed.
  • EPSS 0.0043, the 37th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:09 UTC First seen by agentprime
  2. 31 Oct 2026, 14:09 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.