CVE-2026-12771

LOW
INFO Priority: 0.01 BB Relevance: 53/100
Published: 2026-06-21 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: X
AT: None
VC: Low
VI: Low
VA: Low

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.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
litellm litellm < 1.82.3

References & Advisories (5)

https://vuldb.com/cve/CVE-2026-12771
Third Party Advisory VDB Entry
https://vuldb.com/vuln/372513
Third Party Advisory VDB Entry
https://vuldb.com/submit/811280
Third Party Advisory Exploit VDB Entry
https://vuldb.com/vuln/372513/cti
Permissions Required VDB Entry

Bug Bounty Relevance

53 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

1.3 / 10.0 v4.0
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.43%
Raw Score 0.004310
Percentile 37.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00431
2026-10-28
0.00431

Intelligence Sources

nvd ref →