{"action":"Upgrade nokogiri to 1.19.4 or later.","affected":[{"fixed":"1.19.4","introduced":"0"}],"component":"nokogiri","cve_ids":["CVE-2026-57436"],"ecosystem":"RubyGems","epss":0.00402,"exploited":false,"fixed_versions":["1.19.4"],"ghsa_id":"GHSA-wjv4-x9w8-wm3h","id":"tcs_01M5KENYZPGHZZZCY70WMWDE3E","modified_at":"2026-09-10T03:50:50.907992171Z","published_at":"2026-06-19T16:36:59Z","references":["https://osv.dev/vulnerability/GHSA-wjv4-x9w8-wm3h","https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-wjv4-x9w8-wm3h","https://github.com/sparklemotion/nokogiri"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GHSA-wjv4-x9w8-wm3h","url":"https://osv.dev/vulnerability/GHSA-wjv4-x9w8-wm3h"},{"source":"nvd","source_id":"CVE-2026-57436","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57436"}],"summary":"Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type"}