SB20261110262 - Server-Side Request Forgery (SSRF) in LiteLLM



SB20261110262 - Server-Side Request Forgery (SSRF) in LiteLLM

Published: November 10, 2026

Security Bulletin ID SB20261110262
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-84377)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to disclose configured provider credentials and other secrets and perform server-side request forgery against internal services.

The vulnerability exists due to incomplete denylist validation in the LiteLLM proxy when processing request-body routing and credential parameters, including nested parameters. A remote user can supply routing overrides that retain the operator's stored credentials to redirect provider calls to a controlled destination and exfiltrate secrets, or target internal services reachable from the proxy.


Remediation

Install update from vendor's website.