Litellm 1.82.2 M2M JWT Improper Auth Remote Vulnerability
CVE-2026-12771 Published on June 21, 2026
BerriAI litellm M2M JWT user_api_key_auth.py improper authorization
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.
Timeline
Advisory disclosed
VulDB entry created
VulDB entry last update
Weakness Types
What is an AuthZ Vulnerability?
The software does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.
CVE-2026-12771 has been classified to as an AuthZ vulnerability or weakness.
Incorrect Privilege Assignment
A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.
Products Associated with CVE-2026-12771
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Affected Versions
BerriAI litellm:- Version 1.82.0 is affected.
- Version 1.82.1 is affected.
- Version 1.82.2 is affected.