{"action":"Upgrade multipart to 1.2.2 or later.","affected":[{"fixed":"1.2.2","introduced":"0"},{"fixed":"1.3.1","introduced":"1.3.0"}],"component":"multipart","cve_ids":["CVE-2026-28356"],"ecosystem":"PyPI","epss":0.00746,"exploited":false,"fixed_versions":["1.2.2","1.3.1"],"ghsa_id":"GHSA-p2m9-wcp5-6qw3","id":"tcs_01M5KH0VNEMJAF6EN8SYC9PS8A","modified_at":"2026-07-13T16:32:40.103985053Z","published_at":"2026-07-13T14:36:42.599741Z","references":["https://osv.dev/vulnerability/PYSEC-2026-2670","https://github.com/defnull/multipart/security/advisories/GHSA-p2m9-wcp5-6qw3","https://nvd.nist.gov/vuln/detail/CVE-2026-28356","https://github.com/defnull/multipart","https://pypi.org/project/multipart","https://github.com/advisories/GHSA-p2m9-wcp5-6qw3"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"PYSEC-2026-2670","url":"https://osv.dev/vulnerability/PYSEC-2026-2670"}],"summary":"multipart vulnerable to ReDoS in `parse_options_header()`"}