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Not in CISA KEV
MEDIUM severity

CVE-2024-10908 — fschat

MEDIUM

CVE-2024-10908 is a medium-severity (CVSS 6.1) Open Redirect vulnerability in fschat. The records list no fixed version yet; check the vendor advisory below and apply the mitigations in the meantime.

FastChat open redirect vulnerability

Also known asPYSEC-2026-1394
Published
Updated
Affected
1 pkg
Patched
See advisory
Exploits
None indexed
Exploitation data as of Nov 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-10908.

EPSS Exploitation Probability

via FIRST.org ↗
0.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs57th percentile — riskier than 57% of all scored CVEsHighest risk
0.26%0.73%1.21%1.68%1.2%0.8%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐍fschat

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total
EcosystemPackageVulnerable rangeFix
🐍PyPIfschatall versionsNo fix

Affected Products

1 product · 1 configurations
Application
fastchatlm-sys
1 version
0.2.36

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for fschat, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Remediation status

    The records we use list no patched version of fschat for CVE-2024-10908. Check the maintainer's advisory, and where your build allows, override or pin the dependency away from the vulnerable range.

  3. Mitigate without a patch

    Stop reflecting attacker-controlled destinations: resolve every redirect target against an allowlist of paths or hosts you own, prefer a server-side key over a full URL in the request, and reject absolute URLs entirely where the flow only ever needs a relative one.

How to detect CVE-2024-10908

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2024-10908 -u https://target
Template
FastChat - Open Redirect
Severity
medium
Impact
Unauthenticated attackers can redirect users to malicious URLs, potentially facilitating phishing attacks or credential harvesting.
Remediation
Update FastChat to a version newer than 0.2.36.

Template by ProjectDiscovery nuclei-templates (DhiyaneshDK), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

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CVE-2024-10908: fschat Open Redirect (Medium 6.1)