Denial of Service Vulnerability in FastChat by lm-sys
CVE-2024-10907

7.5HIGH

Key Information:

Vendor

Lm-sys

Status
Lm-sys/fastchat
Vendor
CVE Published:
20 March 2025

What is CVE-2024-10907?

A resource consumption vulnerability exists in FastChat version 0.2.36 due to improper handling of excessive characters appended to multipart boundaries. Attackers can exploit this flaw by sending malformed multipart requests with arbitrary characters at the boundary's end, which results in an infinite loop. This condition leads to overwhelming server resources, ultimately causing a denial of service to all users without any user authentication or interaction needed.

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Affected Version(s)

lm-sys/fastchat <= unspecified

References

https://huntr.com/bounties/bf3ca81d-3508-4455-95d9-0b653e...

CVSS V3.0

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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