Incorrect Authorization Affecting litellm package, versions [,1.89.0rc1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Incorrect Authorization vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PYTHON-LITELLM-17391455
- published21 Jun 2026
- disclosed21 Jun 2026
- creditEdward-x
Introduced: 21 Jun 2026
NewCVE-2026-12771 (opens in a new tab)How to fix?
Upgrade litellm to version 1.89.0rc1 or higher.
Overview
litellm is a Library to easily interface with LLM API providers
Affected versions of this package are vulnerable to Incorrect Authorization in the user_api_key_auth.py file of the M2M JWT Handler. An attacker can gain unauthorized access to resources by exploiting insufficient authorization checks.
Note: This is only exploitable if the attacker possesses valid but limited credentials and can craft specific JWTs to bypass intended access controls.