Server-Side Request Forgery in BerriAI litellm by BerriAI
CVE-2026-12798

5.3MEDIUM

Key Information:

Vendor

Berriai

Status
Litellm
Vendor
CVE Published:
21 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12798?

A security vulnerability exists in BerriAI's litellm product, specifically in the MCP OpenAPI Spec Loader component. This flaw occurs in the function load_openapi_spec_async, located in openapi_to_mcp_generator.py. It allows an attacker to manipulate the spec_path argument, enabling server-side request forgery attacks. This vulnerability can be exploited remotely, potentially leading to unauthorized access and data exposure. The implementation details of this vulnerability are publicly available, raising concerns about its exploitation in real-world scenarios.

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-2026-12798 - Proof of Concept

References

https://vuldb.com/vuln/372560
vdb-entrytechnical-description
https://vuldb.com/vuln/372560/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12798
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
.