HIGH7.5

PYSEC-2026-1396

FastChat Server-Side Request Forgery vulnerability

Details

A Server-Side Request Forgery (SSRF) vulnerability was identified in the lm-sys/fastchat web server, specifically in the affected version git 2c68a13. This vulnerability allows an attacker to access internal server resources and data that are otherwise inaccessible, such as AWS metadata credentials.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/fschat

Introduced in: 0

No fixed version published yet for fschat (pip). Pin to a known-safe version or switch to an alternative.

References

https://nvd.nist.gov/vuln/detail/CVE-2024-12376[ADVISORY]
https://github.com/lm-sys/FastChat[PACKAGE]
https://huntr.com/bounties/c9cc3f28-ee9f-4d2d-9ee5-8c6455a11892[WEB]
https://pypi.org/project/fschat[PACKAGE]
https://github.com/advisories/GHSA-g44m-hpf4-vmrp[ADVISORY]