Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Litellm | Litellm | < 1.82.3 |
Related Weaknesses (CWE)
References
- https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248dExploitThird Party Advisory
- https://vuldb.com/cve/CVE-2026-12771Third Party AdvisoryVDB Entry
- https://vuldb.com/submit/811280Third Party AdvisoryExploitVDB Entry
- https://vuldb.com/vuln/372513Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/372513/ctiPermissions RequiredVDB Entry
FAQ
What is CVE-2026-12771?
CVE-2026-12771 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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...
How severe is CVE-2026-12771?
CVE-2026-12771 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-12771?
Check the references section above for vendor advisories and patch information. Affected products include: Litellm Litellm.