PYSEC-2026-1398
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/fschat/PYSEC-2026-1398.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-1398
- Aliases
-
- CVE-2024-10907
- GHSA-qg86-f892-m4hj
- Published
- 2026-07-07T14:34:52.386620Z
- Modified
- 2026-07-07T17:46:42.043451310Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- FastChat Uncontrolled Resource Consumption vulnerability
- Details
-
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.
- References
Affected packages
PyPI / fschat
Package
- Name
- fschat
- View open source insights on deps.dev
- Purl
- pkg:pypi/fschat
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedLast affected0.2.36
Affected versions
0.*
0.1.1
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8
0.1.9
0.1.10
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.2.6
0.2.7
0.2.8
0.2.9
0.2.10
0.2.11
0.2.12
0.2.13
0.2.14
0.2.15
0.2.16
0.2.17
0.2.18
0.2.20
0.2.21
0.2.23
0.2.24
0.2.26
0.2.27
0.2.28
0.2.29
0.2.30
0.2.31
0.2.32
0.2.33
0.2.34
0.2.35
0.2.36