What is CVE-2026-12771?

CVE-2026-12771 is a medium-severity vulnerability in Berriai Litellm, classified under Incorrect Privilege Assignment. CVSS score: 5.0/10. Published 2026-06-21.

How severe is CVE-2026-12771?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Auth bypass in Berriai Litellm

CVE-2026-12771

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 a…

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Berriai Litellm — versions 1.82.0, 1.82.1, 1.82.2

Weakness classification (CWE)

CWE-266 — Incorrect Privilege Assignment
CWE-285 — Improper Authorization

References

cna@vuldb.com (vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-12771?: CVE-2026-12771 is a medium-severity vulnerability in Berriai Litellm, classified under Incorrect Privilege Assignment. CVSS score: 5.0/10. Published 2026-06-21.
How severe is CVE-2026-12771?: Medium severity. CVSS v3 base score is 5.0 out of 10.