Security Flaw in BerriAI litellm Affects User Authentication
CVE-2026-12772

5.3MEDIUM

Key Information:

Vendor

Berriai

Status
Litellm
Vendor
CVE Published:
21 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12772?

A vulnerability has been identified in BerriAI's litellm software, specifically affecting version 1.82.2 and earlier. The issue arises in the user authentication process within the PROXY_ADMIN database API Key Generator, located in the authenticate_user function of the login_utils.py file. Attackers can exploit this flaw remotely, leading to unintended session expiration. With the exploit being publicly available, immediate attention is crucial for organizations utilizing this product to protect against potential attacks. The vendor was notified promptly about this issue for remediation.

Affected Version(s)

litellm 1.82.0

litellm 1.82.1

litellm 1.82.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-12772 - Proof of Concept

References

https://vuldb.com/vuln/372514
vdb-entrytechnical-description
https://vuldb.com/vuln/372514/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12772
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-c (VulDB User)
VulDB CNA Team
.