SB20261110262 - Server-Side Request Forgery (SSRF) in LiteLLM
Published: November 10, 2026
Breakdown by Severity
- 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.