CVE-2024-11603: Lm-Sys Fastchat

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A Server-Side Request Forgery (SSRF) vulnerability exists in lm-sys/fastchat version 0.2.36. The vulnerability is present in the `/queue/join?` endpoint, where insufficient validation of the path parameter allows an attacker to send crafted requests. This can lead to unauthorized access to internal networks or the AWS metadata endpoint, potentially exposing sensitive data and compromising internal servers.

Affected products

• Lm-Sys Fastchat: version 0.2.36 only

Published 2025-03-20. Last modified 2026-06-17.