{"action":"Upgrade postcss-selector-parser to 6.1.3 or later.","affected":[{"fixed":"6.1.3","introduced":"6.1.0"},{"fixed":"7.1.3","introduced":"7.1.0"}],"component":"postcss-selector-parser","cve_ids":["CVE-2026-9358"],"ecosystem":"npm","epss":0.0058,"exploited":false,"fixed_versions":["6.1.3","7.1.3"],"ghsa_id":"GHSA-w9m9-85wc-3x92","id":"tcs_01M5KGENJNW574FRJTH2QXM7GV","modified_at":"2026-09-10T03:50:47.767644603Z","published_at":"2026-05-26T13:30:30Z","references":["https://osv.dev/vulnerability/GHSA-w9m9-85wc-3x92","https://nvd.nist.gov/vuln/detail/CVE-2026-9358","https://github.com/postcss/postcss-selector-parser/commit/5bc698cef66f8abd12610dc623e5d67cbc0f869d","https://github.com/postcss/postcss-selector-parser/commit/e37c5b0b785b165e27508d2489fdec8e0f18b10a","https://gist.github.com/bx33661/581e3a38134601c04e19b4dfc9b459b9","https://github.com/postcss/postcss-selector-parser","https://github.com/postcss/postcss-selector-parser/releases/tag/6.1.3","https://github.com/postcss/postcss-selector-parser/releases/tag/7.1.3","https://vuldb.com/cve/CVE-2026-9358","https://vuldb.com/submit/813080","https://vuldb.com/vuln/365321","https://vuldb.com/vuln/365321/cti"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-w9m9-85wc-3x92","url":"https://osv.dev/vulnerability/GHSA-w9m9-85wc-3x92"}],"summary":"postcss-selector-parser allows denial of service through uncontrolled AST recursion"}