CVE-2026-12771 | A vulnerability was identified in BerriAI litellm up to 1.82… | CVSS 5.0 MEDIUM

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.

Metadata

CVE ID: CVE-2026-12771
State: PUBLISHED
Assigner: VulDB
Reserved: 2026-06-20 09:26 UTC
Published: 2026-06-21 01:00 UTC
Last updated: 2026-06-21 01:00 UTC
Primary CWE: CWE-285
Improper Authorization
Vendor / Product: BerriAI / litellm
Sources: cve.org · NVD

Severity & Metrics

5.0 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Affected products (1)

Vendor	Product	Platform	Versions
BerriAI	litellm	—	1.82.0, 1.82.1, 1.82.2

Weakness (CWE)

CWE	Source	Description
CWE-266	cna	Incorrect Privilege Assignment
CWE-285	cna	Improper Authorization

CVSS scores (4)

Score	Severity	Version	Source	Vector
5.0	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
5.0	MEDIUM	3.0	cna	CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.6	N/D	2.0	cna	AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR
2.3	LOW	4.0	cna	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

References (5)

VDB-372513 | BerriAI litellm M2M JWT user_api_key_auth.py improper authorization https://vuldb.com/vuln/372513
VDB-372513 | CTI Indicators (IOB, IOC, TTP, IOA) https://vuldb.com/vuln/372513/cti
CVE-2026-12771 | CVE Analysis and Report https://vuldb.com/cve/CVE-2026-12771
Submit #811280 | litellm <= 1.82.2 Improper Authorization (CWE-285) https://vuldb.com/submit/811280
https://gist.github.com/YLChen-007/70e4e106527f74ddf17953ff0f6c248d