Vulnerability Description
python-multipart is a streaming multipart parser for Python. When parsing form data, python-multipart skips line breaks (CR \r or LF \n) in front of the first boundary and any tailing bytes after the last boundary. This happens one byte at a time and emits a log event each time, which may cause excessive logging for certain inputs. An attacker could abuse this by sending a malicious request with lots of data before the first or after the last boundary, causing high CPU load and stalling the processing thread for a significant amount of time. In case of ASGI application, this could stall the event loop and prevent other requests from being processed, resulting in a denial of service (DoS). This vulnerability is fixed in 0.0.18.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Kludex/python-multipart/commit/c4fe4d3cebc08c660e57dd709af1ff
- https://github.com/Kludex/python-multipart/security/advisories/GHSA-59g5-xgcq-4q
FAQ
What is CVE-2024-53981?
CVE-2024-53981 is a vulnerability with a CVSS score of 7.5 (HIGH). python-multipart is a streaming multipart parser for Python. When parsing form data, python-multipart skips line breaks (CR \r or LF \n) in front of the first boundary and any tailing bytes after the ...
How severe is CVE-2024-53981?
CVE-2024-53981 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-53981?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.