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CVE-2026-12774

BerriAI litellm MCP Server Connection Testing rest_endpoints.py _execute_with_mcp_client server-side request forgery

Published: Jun 21, 2026Updated: Jun 22, 2026 Sources: CVE List NVDCWE-918
NVD MITRE
6.3CVSSMEDIUM
EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A security vulnerability has been detected in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function _execute_with_mcp_client of the file litellm/proxy/_experimental/mcp_server/rest_endpoints.py of the component MCP Server Connection Testing. The manipulation leads to server-side request forgery. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-918

Affected Products

litellmBerriAI
SaaS
AI / ML / llm-serving-inference
berriaicommercialAI / MLaka litellm, berriai/litellm

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Command and Control
Initial Access
View detailed technique mapping

References

https://vuldb.com/vuln/372516
vuldb.com
https://vuldb.com/vuln/372516/cti
vuldb.com
https://vuldb.com/cve/CVE-2026-12774
vuldb.com
and 2 more references View all →

Timeline

Published
Jun 21, 2026
Last Updated
Jun 22, 2026

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