Allocation of Resources Without Limits or Throttling Affecting semgrep package, versions <1.162.0-r0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published9 May 2026
- disclosed13 May 2026
Introduced: 9 May 2026
NewCVE-2026-42561 (opens in a new tab)How to fix?
Upgrade Wolfi semgrep to version 1.162.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream semgrep package and not the semgrep package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
Python-Multipart is a streaming multipart parser for Python. Prior to 0.0.27, python-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of part headers or the size of an individual part header. An attacker could send a request with either many repeated headers without terminating the header block or a single very large header value, causing excessive CPU work before request rejection or completion. This vulnerability is fixed in 0.0.27.