Open Redirect in lm-sys/fastchat
Priority MEDIUM 60CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-601.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00784 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| lm-sys | lm-sys/fastchat | up to latest | — | No fix listed | CNA |
| — | fschat (PyPI) | up to 0.2.36 | — | No fix listed | GHSA-77cj-rv5x-v6r2 |
- lm-sys/fastchat Vendorlm-sys Affected up to latest Fixed in — No fix listed CNA
- fschat (PyPI) Vendor— Affected up to 0.2.36 Fixed in — No fix listed GHSA-77cj-rv5x-v6r2
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-10908
- 2026-10-03 Alias added: GHSA-77cj-rv5x-v6r2
References
More lm-sys Fastchat vulnerabilities
- TI-2024-09320 SSRF in POST /worker_generate_stream API endpoint in lm-sys/fastchat CVSS 3.0CRITICAL 9.3
- TI-2024-11482 Server Side Request Forgery in lm-sys/fastchat CVSS 3.0HIGH 7.5
- TI-2024-10750 Server-Side Request Forgery in lm-sys/fastchat CVSS 3.0HIGH 7.5
- TI-2024-10115 Denial of Service in lm-sys/fastchat CVSS 3.0HIGH 7.5
- TI-2024-10111 Denial of Service (DoS) via Multipart Boundary in lm-sys/fastchat CVSS 3.0HIGH 7.5
Sources
- CVE-2024-10908 · CVE Program
- CVE-2024-10908 · NVD
- FIRST EPSS
- GHSA-77cj-rv5x-v6r2 · GitHub Advisory Database · CC BY 4.0
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