{"id":"RHLW-2026-49c9d6d5f43496cc","summary":"Lightwell Security Advisory: python-multipart 0.0.27+rhlw.1","details":"Red Hat Lightwell has released python-multipart 0.0.27+rhlw.1 with a backported security fix.\n\nCVE-2026-53539: Python-Multipart: Quadratic-time querystring parsing with semicolon separators causes CPU denial of service\n\nThis patched artifact is a drop-in replacement for python-multipart 0.0.27 from PyPI.","modified":"2026-11-06T19:30:02.716681387Z","published":"2026-11-06T14:28:38Z","upstream":["CVE-2026-53539","GHSA-5rvq-cxj2-64vf"],"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53539.json"},{"type":"ADVISORY","url":"https://github.com/Kludex/python-multipart/security/advisories/GHSA-5rvq-cxj2-64vf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53539"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-5rvq-cxj2-64vf"}],"affected":[{"package":{"name":"python-multipart","ecosystem":"Red Hat Lightwell:PyPI","purl":"pkg:pypi/python-multipart"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.27+rhlw.1"}]}],"versions":["0.0.1","0.0.10","0.0.11","0.0.12","0.0.13","0.0.14","0.0.15","0.0.16","0.0.17","0.0.18","0.0.19","0.0.2","0.0.20","0.0.21","0.0.22","0.0.23","0.0.24","0.0.25","0.0.26","0.0.27","0.0.3","0.0.4","0.0.5","0.0.6","0.0.7","0.0.8","0.0.9"],"database_specific":{"lightwell":{"repository_url":"https://packages.redhat.com/lightwell/python/remediated/","backport_base_version":"0.0.27","remediated_version":"0.0.27+rhlw.1"},"source":"https://github.com/project-lightwell/lightwell-osv/blob/main/advisories/RHLW-2026-49c9d6d5f43496cc.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"credits":[{"name":"Red Hat Lightwell","type":"REMEDIATION_DEVELOPER"}]}