Authorization Vulnerability in BerriAI Litellm Affects Completions Interface
CVE-2026-12797

5.3MEDIUM

Key Information:

Vendor

Berriai

Status
Litellm
Vendor
CVE Published:
21 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12797?

A security vulnerability has been identified in BerriAI Litellm, specifically within the async_pre_call_hook function of the enterprise_hooks/banned_keywords.py component. This flaw allows for improper manipulation of the prompt argument, leading to incorrect authorization outcomes. The exploitation of this vulnerability can take place remotely, elevating the risk of malicious activity. The vendor has been notified of this issue, which has already seen public disclosure, highlighting the urgent need for mitigation strategies.

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-2026-12797 - Proof of Concept

References

https://vuldb.com/vuln/372559
vdb-entrytechnical-description
https://vuldb.com/vuln/372559/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12797
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
.