CVE-2024-10907 Details
Description
In lm-sys/fastchat Release v0.2.36, the server fails to handle excessive characters appended to the end of multipart boundaries. This flaw can be exploited by sending malformed multipart requests with arbitrary characters at the end of the boundary. Each extra character is processed in an infinite loop, leading to excessive resource consumption and a complete denial of service (DoS) for all users. The vulnerability is unauthenticated, meaning no user login or interaction is required for an attacker to exploit this issue.
A denial-of-service vulnerability has been identified in lm-sys FastChat version 0.2.36. The issue arises because the server does not properly manage excessive characters added to the end of multipart boundaries. This flaw can be exploited by sending malformed multipart requests with arbitrary characters, such as hyphens or spaces, at the end of the boundary. The server processes each extra character in an infinite loop, causing excessive resource consumption and rendering the service unresponsive for all users. This vulnerability can be exploited without authentication or user interaction.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 20, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://huntr.com/bounties/bf3ca81d-3508-4455-95d9-0b653e46d6e4 | [email protected] | ExploitThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| lm-sys fastchat | 0.2.36 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 15, 2025 | CVE Modified | [email protected] |
| Jul 31, 2025 | Initial Analysis | [email protected] |
| Mar 20, 2025 | New CVE Received | [email protected] |