What is the CVSS score of CVE-2024-11603?

CVE-2024-11603 has a CVSS 3.0 base score of 7.5 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Fastchat are affected by CVE-2024-11603?

Organizations using lm-sys/fastchat face notable risk from CVE-2024-11603, a server-side request forgery vulnerability rated CVSS 7.5.

Is there a public PoC exploit available for CVE-2024-11603?

Yes, a public proof-of-concept exploit is available for CVE-2024-11603. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2024-11603?

Within 7 days: Identify all affected systems running lm-sys/fastchat and apply vendor patches promptly. Implement egress filtering and URL validation for server-side requests.

Fastchat CVE-2024-11603

HIGH

Server-Side Request Forgery (SSRF) (CWE-918)

2025-03-20 security@huntr.dev

Information Disclosure SSRF Authentication Bypass Fastchat

7.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:32 vuln.today

PoC Detected

Jul 29, 2025 - 19:36 vuln.today

Public exploit code

CVE Published

Mar 20, 2025 - 10:15 nvd

HIGH 7.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

32 pypi packages depend on fschat (26 direct, 6 indirect)

Ecosystem-wide dependent count for version 0.2.36.

DescriptionCVE.org

A Server-Side Request Forgery (SSRF) vulnerability exists in lm-sys/fastchat version 0.2.36. The vulnerability is present in the /queue/join? endpoint, where insufficient validation of the path parameter allows an attacker to send crafted requests. This can lead to unauthorized access to internal networks or the AWS metadata endpoint, potentially exposing sensitive data and compromising internal servers.

AnalysisAI

A Server-Side Request Forgery (SSRF) vulnerability exists in lm-sys/fastchat version 0.2.36. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. A Server-Side Request Forgery (SSRF) vulnerability exists in lm-sys/fastchat version 0.2.36. The vulnerability is present in the /queue/join? endpoint, where insufficient validation of the path parameter allows an attacker to send crafted requests. This can lead to unauthorized access to internal networks or the AWS metadata endpoint, potentially exposing sensitive data and compromising internal servers. Affected products include: Lm-Sys Fastchat. Version information: version 0.2.36..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.

CVE-2024-11603 vulnerability details – vuln.today

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Fastchat CVE-2024-11603

Severity by source

CVSS VectorNVD

Lifecycle Timeline

Blast Radius

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code