High CVSS 7.5

Overview

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.

Risk analysis

This vulnerability is rated 🟠 HIGH.

  • CVSS: 7.5 (HIGH)
  • Detected tags: ssrf, unauth_access (tag impact: HIGH)

Recommended actions:

  • Deny access to internal/metadata addresses; use outbound allowlists.
  • Enforce authentication/authorization; reduce default endpoint exposure.

Recommended tools

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