fastchatGHSA-h254-g997-685c
FastChat Server-Side Request Forgery vulnerability
High7.5CVE-2024-11603 · Published Mar 20, 2025 · updated Jul 7, 2026
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| fschat PyPI | <= 0.2.36 | No fix yet |
Details and references
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.
- CVSS 3.0
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-918
- Also known as
- CVE-2024-11603, PYSEC-2026-1397
More fastchat advisories
All| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Mar 202025 | FastChat open redirect vulnerability CVE-2024-10908Medium6.1no fix yet | Medium6.1 | No fix yet |
| Mar 202025 | FastChat Denial of Service vulnerability CVE-2024-10912High7.5no fix yet | High7.5 | No fix yet |
| Mar 202025 | FastChat Uncontrolled Resource Consumption vulnerability CVE-2024-10907High7.5no fix yet | High7.5 | No fix yet |
| Mar 202025 | FastChat Server-Side Request Forgery vulnerability CVE-2024-12376High7.5no fix yet | High7.5 | No fix yet |
| Apr 20 | FastChat has Denial of Service Through Blocking Event Loop in Model Workers (Incomplete Fix for ff66426) CVE-2026-6607Medium5.3no fix yet | Medium5.3 | No fix yet |
| Apr 20 | FastChat has a Content Moderation Bypass via Arena Side-by-Side Views CVE-2026-6608Medium5.3no fix yet | Medium5.3 | No fix yet |