fastchatGHSA-79rp-v9rm-gxm8
FastChat Denial of Service vulnerability
High7.5CVE-2024-10912 · 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 Denial of Service (DoS) vulnerability exists in the file upload feature of lm-sys/fastchat version 0.2.36. The vulnerability is due to improper handling of form-data with a large filename in the file upload request. An attacker can exploit this by sending a payload with an excessively large filename, causing the server to become overwhelmed and unavailable to legitimate users.
- CVSS 3.0
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-400
- Also known as
- CVE-2024-10912, PYSEC-2026-1395
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 Uncontrolled Resource Consumption vulnerability CVE-2024-10907High7.5no fix yet | High7.5 | No fix yet |
| Mar 202025 | FastChat Server-Side Request Forgery vulnerability CVE-2024-11603High7.5no 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 |