CVE-2024-53981
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-53981
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-53981.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-53981
- Aliases
- Downstream
- Related
- Published
- 2024-12-02T15:57:50.232Z
- Modified
- 2025-12-05T07:34:01.623590Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- python-multipart has a Denial of service (DoS) via deformation `multipart/form-data` boundary
- Details
-
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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53981.json", "cwe_ids": [ "CWE-770" ], "cna_assigner": "GitHub_M" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/53xxx/CVE-2024-53981.json
- https://github.com/Kludex/python-multipart/commit/c4fe4d3cebc08c660e57dd709af1ffa7059b3177
- https://github.com/Kludex/python-multipart/security/advisories/GHSA-59g5-xgcq-4qw3
- https://nvd.nist.gov/vuln/detail/CVE-2024-53981