What’s Vulnerable › Vulnerabilities

CVE-2026-12774: BerriAI litellm MCP Server Connection Testing rest_endpoints.py _execute_with_mcp_client server-side request forgery

• Severity: medium (CVSS 6.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-06-21 · updated 2026-10-25
• Weakness: CWE-918

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.

Affected products

• BerriAI litellm: through 1.82.2

References

• https://gist.github.com/YLChen-007/256c8ff0750e298f89b6b287c90c2981
• https://vuldb.com/cve/CVE-2026-12774
• https://vuldb.com/submit/811285
• https://vuldb.com/vuln/372516
• https://vuldb.com/vuln/372516/cti

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