{"action":"Upgrade soupsieve to 2.9.0 or later.","affected":[{"fixed":"2.9.0","introduced":"0"}],"component":"soupsieve","cve_ids":["CVE-2026-86000"],"ecosystem":"PyPI","epss":0.00609,"exploited":false,"fixed_versions":["2.9.0"],"ghsa_id":"GHSA-gjv8-xp57-g29c","id":"tcs_01M5KFHVYK144DC8KRMC3A6BSF","modified_at":"2026-10-01T17:56:08.291385035Z","published_at":"2026-09-17T20:32:58Z","references":["https://osv.dev/vulnerability/GHSA-gjv8-xp57-g29c","https://github.com/facelessuser/soupsieve/security/advisories/GHSA-gjv8-xp57-g29c","https://nvd.nist.gov/vuln/detail/CVE-2026-86000","https://github.com/facelessuser/soupsieve/commit/ce44e4996e6632871c18cdd7a7fb641be8ef34ef","https://github.com/facelessuser/soupsieve","https://github.com/facelessuser/soupsieve/releases/tag/2.9"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-gjv8-xp57-g29c","url":"https://osv.dev/vulnerability/GHSA-gjv8-xp57-g29c"}],"summary":"Soup Sieve: Polynomial-time ReDoS (O(n²)) in the `IDENTIFIER` / `VALUE` selector sub-patterns"}