{"id":"CVE-2026-33168","aliases":["DEBIAN-CVE-2026-33168","EUVD-2026-14616","GHSA-v55j-83pf-r9cq","UBUNTU-CVE-2026-33168"],"status":"published","title":"Rails has a possible XSS vulnerability in its Action View tag helpers","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","severity":{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00693,"percentile":0.53237,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-03-23T20:51:18Z","modified":"2026-10-28T02:30:53Z","fixes":[{"ecosystem":"RubyGems","package":"actionview","fixed_in":["8.1.2.1","8.0.4.1","7.2.3.1"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"rails","fixed_in":["2:6.1.7.10+dfsg-1~deb12u3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"rails","fixed_in":["2:7.2.2.2+dfsg-2~deb13u2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"rails","fixed_in":["2:7.2.3.1+dfsg-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"actionview","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1.0.beta1"},{"fixed":"8.1.2.1"}]}]},{"source":"ghsa","ecosystem":"RubyGems","package":"actionview","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0.beta1"},{"fixed":"8.0.4.1"}]}]},{"source":"ghsa","ecosystem":"RubyGems","package":"actionview","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.3.1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"rails","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:6.1.7.10+dfsg-1~deb12u3"}]}],"versions":["2:6.1.7.10+dfsg-1~deb12u1","2:6.1.7.10+dfsg-1~deb12u2","2:6.1.7.3+dfsg-1","2:6.1.7.3+dfsg-10","2:6.1.7.3+dfsg-11","2:6.1.7.3+dfsg-12","2:6.1.7.3+dfsg-13","2:6.1.7.3+dfsg-2","2:6.1.7.3+dfsg-2~deb12u1","2:6.1.7.3+dfsg-3","2:6.1.7.3+dfsg-4","2:6.1.7.3+dfsg-5","2:6.1.7.3+dfsg-6","2:6.1.7.3+dfsg-7","2:6.1.7.3+dfsg-7~exp1","2:6.1.7.3+dfsg-8","2:6.1.7.3+dfsg-9"]},{"source":"osv","ecosystem":"Debian:13","package":"rails","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:7.2.2.2+dfsg-2~deb13u2"}]}],"versions":["2:7.2.2.1+dfsg-7","2:7.2.2.2+dfsg-1","2:7.2.2.2+dfsg-2~deb13u1"]},{"source":"osv","ecosystem":"Debian:14","package":"rails","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:7.2.3.1+dfsg-1"}]}],"versions":["2:7.2.2.1+dfsg-7","2:7.2.2.2+dfsg-1","2:7.2.2.2+dfsg-2","2:7.2.2.2+dfsg-2~deb13u1","2:7.2.2.2+dfsg-2~deb13u2","2:7.2.3+dfsg-1","2:7.2.3+dfsg-2","2:7.2.3+dfsg-3"]},{"source":"osv","ecosystem":"RubyGems","package":"actionview","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.1.0.beta1"},{"fixed":"8.1.2.1"}]}],"versions":["8.1.0","8.1.0.beta1","8.1.0.rc1","8.1.1","8.1.2"]},{"source":"osv","ecosystem":"RubyGems","package":"actionview","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.0.0.beta1"},{"fixed":"8.0.4.1"}]}],"versions":["8.0.0","8.0.0.1","8.0.0.beta1","8.0.0.rc1","8.0.0.rc2","8.0.1","8.0.2","8.0.2.1","8.0.3","8.0.4"]},{"source":"osv","ecosystem":"RubyGems","package":"actionview","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.3.1"}]}],"versions":["4.1.0","4.1.0.beta1","4.1.0.beta2","4.1.0.rc1","4.1.0.rc2","4.1.1","4.1.10","4.1.10.rc1","4.1.10.rc2","4.1.10.rc3","4.1.10.rc4","4.1.11","4.1.12","4.1.12.rc1","4.1.13","4.1.13.rc1","4.1.14","4.1.14.1","4.1.14.2","4.1.14.rc1","4.1.14.rc2","4.1.15","4.1.15.rc1","4.1.16","4.1.16.rc1","4.1.2","4.1.2.rc1","4.1.2.rc2","4.1.2.rc3","4.1.3","4.1.4","4.1.5","4.1.6","4.1.6.rc1","4.1.6.rc2","4.1.7","4.1.7.1","4.1.8","4.1.9","4.1.9.rc1","4.2.0","4.2.0.beta1","4.2.0.beta2","4.2.0.beta3","4.2.0.beta4","4.2.0.rc1","4.2.0.rc2","4.2.0.rc3","4.2.1","4.2.1.rc1","4.2.1.rc2","4.2.1.rc3","4.2.1.rc4","4.2.10","4.2.10.rc1","4.2.11","4.2.11.1","4.2.11.2","4.2.11.3","4.2.2","4.2.3","4.2.3.rc1","4.2.4","4.2.4.rc1","4.2.5","4.2.5.1","4.2.5.2","4.2.5.rc1","4.2.5.rc2","4.2.6","4.2.6.rc1","4.2.7","4.2.7.1","4.2.7.rc1","4.2.8","4.2.8.rc1","4.2.9","4.2.9.rc1","4.2.9.rc2","5.0.0","5.0.0.1","5.0.0.beta1","5.0.0.beta1.1","5.0.0.beta2","5.0.0.beta3","5.0.0.beta4","5.0.0.racecar1","5.0.0.rc1","5.0.0.rc2","5.0.1","5.0.1.rc1","5.0.1.rc2","5.0.2","5.0.2.rc1","5.0.3","5.0.4","5.0.4.rc1","5.0.5","5.0.5.rc1","5.0.5.rc2","5.0.6","5.0.6.rc1","5.0.7","5.0.7.1","5.0.7.2","5.1.0","5.1.0.beta1","5.1.0.rc1","5.1.0.rc2","5.1.1","5.1.2","5.1.2.rc1","5.1.3","5.1.3.rc1","5.1.3.rc2","5.1.3.rc3","5.1.4","5.1.4.rc1","5.1.5","5.1.5.rc1","5.1.6","5.1.6.1","5.1.6.2","5.1.7","5.1.7.rc1","5.2.0","5.2.0.beta1","5.2.0.beta2","5.2.0.rc1","5.2.0.rc2","5.2.1","5.2.1.1","5.2.1.rc1","5.2.2","5.2.2.1","5.2.2.rc1","5.2.3","5.2.3.rc1","5.2.4","5.2.4.1","5.2.4.2","5.2.4.3","5.2.4.4","5.2.4.5","5.2.4.6","5.2.4.rc1","5.2.5","5.2.6","5.2.6.1","5.2.6.2","5.2.6.3","5.2.7","5.2.7.1","5.2.8","5.2.8.1","6.0.0","6.0.0.beta1","6.0.0.beta2","6.0.0.beta3","6.0.0.rc1","6.0.0.rc2","6.0.1","6.0.1.rc1","6.0.2","6.0.2.1","6.0.2.2","6.0.2.rc1","6.0.2.rc2","6.0.3","6.0.3.1","6.0.3.2","6.0.3.3","6.0.3.4","6.0.3.5","6.0.3.6","6.0.3.7","6.0.3.rc1","6.0.4","6.0.4.1","6.0.4.2","6.0.4.3","6.0.4.4","6.0.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has a possible XSS vulnerability in its Action View tag helpers","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","status":"published","published":"2026-03-23T23:01:22.019Z","modified":"2026-03-24T13:36:44.829Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:20:08.009733Z"}],"euvd":[{"id":"EUVD-2026-14616","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","status":"published","published":"2026-03-23T23:01:22Z","modified":"2026-03-24T13:36:44Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"updated_at":"2026-11-02T19:25:30.317985Z"}],"ghsa":[{"id":"GHSA-v55j-83pf-r9cq","title":"Rails has a possible XSS vulnerability in its Action View tag helpers","description":"### Impact\nWhen a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected.\n\n### Releases\nThe fixed releases are available at the normal locations.\n\n### Credit\nThis issue was responsibly reported by Hackerone researcher [taise](https://hackerone.com/taise).","status":"published","published":"2026-03-23T20:51:18Z","modified":"2026-05-13T16:14:54Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:40:08.003212Z"}],"nvd":[{"id":"CVE-2026-33168","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","status":"published","published":"2026-03-23T23:17:12.873Z","modified":"2026-06-17T10:37:04.13Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:10.568062Z"}],"osv":[{"id":"CVE-2026-33168","title":"Rails has a possible XSS vulnerability in its Action View tag helpers","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","status":"published","published":"2026-03-23T23:01:22.019Z","modified":"2026-10-28T02:30:53.830290547Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:45:01.548715Z"},{"id":"DEBIAN-CVE-2026-33168","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","status":"published","published":"2026-03-23T23:17:12.873Z","modified":"2026-10-08T18:00:07.10916687Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"}],"updated_at":"2026-11-02T15:45:54.587575Z"},{"id":"GHSA-v55j-83pf-r9cq","title":"Rails has a possible XSS vulnerability in its Action View tag helpers","description":"### Impact\nWhen a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected.\n\n### Releases\nThe fixed releases are available at the normal locations.\n\n### Credit\nThis issue was responsibly reported by Hackerone researcher [taise](https://hackerone.com/taise).","status":"published","published":"2026-03-23T20:51:18Z","modified":"2026-09-10T03:50:41.092699456Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:56.639206Z"},{"id":"UBUNTU-CVE-2026-33168","description":"Action View provides conventions and helpers for building web pages with the Rails framework. Prior to versions 8.1.2.1, 8.0.4.1, and 7.2.3.1, when a blank string is used as an HTML attribute name in Action View tag helpers, the attribute escaping is bypassed, producing malformed HTML. A carefully crafted attribute value could then be misinterpreted by the browser as a separate attribute name, possibly leading to XSS. Applications that allow users to specify custom HTML attributes are affected. Versions 8.1.2.1, 8.0.4.1, and 7.2.3.1 contain a patch.","status":"published","published":"2026-03-23T23:17:00Z","modified":"2026-10-17T12:58:10.563720051Z","cvss":[{"version":"4.0","score":2.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"low"}],"updated_at":"2026-11-02T16:56:16.036833Z"}]}}