PYSEC-2026-4075
LiteLLM: M2M JWT Handler Has Improper Authorization
At a glance
- Published
- Updated
- CVE
- CVE-2026-12771
- Aliases
- GHSA-qmf3-4767-5fg3
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
- CVSS_V4
- 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
Description
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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · litellm | introduced 0, last affected 1.82.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-12771 ADVISORY
- https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248d WEB
- https://github.com/BerriAI/litellm PACKAGE
- https://vuldb.com/cve/CVE-2026-12771 WEB
- https://vuldb.com/submit/811280 WEB
- https://vuldb.com/vuln/372513 WEB
- https://vuldb.com/vuln/372513/cti WEB
- https://pypi.org/project/litellm PACKAGE
- https://github.com/advisories/GHSA-qmf3-4767-5fg3 ADVISORY
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — PyPA Advisory Database |