{"id":"CVE-2026-61848","aliases":["DEBIAN-CVE-2026-61848","EUVD-2026-114324","GHSA-8vfg-2r28-hvhj","OESA-2026-4724","OESA-2026-4725","OESA-2026-4726","OESA-2026-4760","UBUNTU-CVE-2026-61848"],"status":"published","title":"Crass: Non-ASCII characters cause superlinear CPU consumption","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00486,"percentile":0.42278,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400"],"published":"2026-10-29T16:35:29Z","modified":"2026-11-11T12:45:03Z","fixes":[{"ecosystem":"RubyGems","package":"crass","fixed_in":["1.0.7"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:14","package":"ruby-crass","fixed_in":["1.0.7-1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"RubyGems","package":"crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.7"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-3","1.0.6-1","1.0.7-1","1.0.8-1"]},{"source":"osv","ecosystem":"Debian:13","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.6-1","1.0.7-1","1.0.8-1"]},{"source":"osv","ecosystem":"Debian:14","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.7-1"}]}],"versions":["1.0.6-1"]},{"source":"osv","ecosystem":"RubyGems","package":"crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.7"}]}],"versions":["0.0.1","0.0.2","0.1.0","0.2.0","0.2.1","1.0.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6"]},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP3","package":"rubygem-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.8-1.oe2403sp3"}]}],"bundled":4},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP4","package":"rubygem-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.8-1.oe2203sp4"}]}],"bundled":4},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP1","package":"rubygem-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.8-1.oe2403sp1"}]}],"bundled":4},{"source":"osv","ecosystem":"openEuler:24.03-LTS-SP4","package":"rubygem-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.8-1.oe2403sp4"}]}],"bundled":4},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-2"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-2.1","1.0.2-3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.2-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.6-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"ruby-crass","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.6-1ubuntu1"]}],"products":[{"vendor":"rgrove","product":"crass"}],"references":[{"url":"https://github.com/rgrove/crass/security/advisories/GHSA-8vfg-2r28-hvhj","tags":["x_refsource_CONFIRM","advisory","web","report"]},{"url":"https://github.com/rgrove/crass/releases/tag/v1.0.7","tags":["x_refsource_MISC","web","report"]},{"url":"http://github.com/rgrove/crass/commit/da29664648bf80a97a6439e030a4814291c9afa5","tags":["x_refsource_MISC","fix","web","report"]},{"url":"https://github.com/advisories/GHSA-8vfg-2r28-hvhj"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61848.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61848","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-61848","tags":["advisory"]},{"url":"https://github.com/rgrove/crass","tags":["package"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4724","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116695","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61846","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61847","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4725","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4726","tags":["advisory"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4760","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-61848","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-61848","tags":["report"]},{"url":"https://github.com/rgrove/crass/commit/da29664648bf80a97a6439e030a4814291c9afa5","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-61848","title":"Crass: Non-ASCII characters cause superlinear CPU consumption","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","status":"published","published":"2026-10-30T18:45:20.036Z","modified":"2026-11-06T17:31:01.082Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-06T18:59:08.885567Z"}],"euvd":[{"id":"EUVD-2026-114324","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","status":"published","published":"2026-10-30T18:45:20Z","modified":"2026-11-06T17:31:01Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium"}],"updated_at":"2026-11-06T18:05:39.47551Z"}],"ghsa":[{"id":"GHSA-8vfg-2r28-hvhj","title":"Crass: Non-ASCII characters cause superlinear CPU consumption","description":"### Impact\n\nWhen parsing an input containing non-ASCII characters, inefficiencies in how Crass tracks the positions of multi-byte characters result in superlinear parsing time. An attacker-controlled input consisting of many non-ASCII characters could cause excessive CPU consumption and potentially denial of service.\n\n### Patches\n\nThis is fixed in Crass 1.0.7.\n\n### Workarounds\n\nAvoid passing non-ASCII input to Crass. Or cultivate patience.","status":"published","published":"2026-10-29T16:35:29Z","modified":"2026-10-29T16:35:33Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:41:41.028239Z"}],"nvd":[{"id":"CVE-2026-61848","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","status":"published","published":"2026-10-30T19:18:28.707Z","modified":"2026-11-06T18:18:15.657Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/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":"medium","assessor":"secondary"}],"cwes":["CWE-400"],"updated_at":"2026-11-06T20:01:16.0125Z"}],"osv":[{"id":"CVE-2026-61848","title":"Crass: Non-ASCII characters cause superlinear CPU consumption","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","status":"published","published":"2026-10-30T18:45:20.036Z","modified":"2026-11-08T02:30:31.148831477Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-07T03:08:08.334472Z"},{"id":"DEBIAN-CVE-2026-61848","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","status":"published","published":"2026-10-30T19:18:28.707Z","modified":"2026-11-07T09:47:25.399721113Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/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":"medium"}],"updated_at":"2026-11-07T10:14:39.995311Z"},{"id":"GHSA-8vfg-2r28-hvhj","title":"Crass: Non-ASCII characters cause superlinear CPU consumption","description":"### Impact\n\nWhen parsing an input containing non-ASCII characters, inefficiencies in how Crass tracks the positions of multi-byte characters result in superlinear parsing time. An attacker-controlled input consisting of many non-ASCII characters could cause excessive CPU consumption and potentially denial of service.\n\n### Patches\n\nThis is fixed in Crass 1.0.7.\n\n### Workarounds\n\nAvoid passing non-ASCII input to Crass. Or cultivate patience.","status":"published","published":"2026-10-29T16:35:29Z","modified":"2026-10-29T16:45:04.487777722Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:42.78452Z"},{"id":"OESA-2026-4724","title":"rubygem-crass security update","description":"Crass is a pure Ruby CSS parser based on the CSS Syntax Level 3 spec.\r\n\r\nSecurity Fix(es):\n\nCrass is a Ruby CSS parser that is compliant with the CSS Syntax Level 3 specification. Prior to 1.0.8, Crass incorrectly treats a closing parenthesis after an escaped backslash as escaped while consuming the remnants of a bad URL. Crass therefore keeps declarations, style rules, or at-rules inside a bad URL token even though a browser treats them as live CSS. A sanitizer that parses untrusted CSS with Crass and reserializes it without rejecting the bad URL can allow CSS used for UI redress, external resource loading, or CSS-based data exfiltration, but this issue does not enable script execution in modern browsers. This issue is fixed in version 1.0.8.(CVE-2026-116695)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass recursively parses `CSS simple blocks and functions` without a depth guard. An attacker-controlled CSS value containing deeply nested blocks or functions can recurse until Ruby raises `SystemStackError`: stack level too deep, or cause excessive memory usage. Version 1.0.7 adds a configurable depth limit with a conservative default. This issue is fixed in version 1.0.7.(CVE-2026-61846)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when the `:preserve_comments` option is not enabled, which is the default, Crass discards CSS comments by recursively consuming the next token. An attacker-provided stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a `SystemStackError`, denying service to the parsing application. Preserving comments avoids this recursive path. This issue is fixed in version 1.0.7.(CVE-2026-61847)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.(CVE-2026-61848)","status":"published","published":"2026-11-04T13:54:55Z","modified":"2026-11-04T14:00:06.229931152Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4725","title":"rubygem-crass security update","description":"Crass is a pure Ruby CSS parser based on the CSS Syntax Level 3 spec.\r\n\r\nSecurity Fix(es):\n\nCrass is a Ruby CSS parser that is compliant with the CSS Syntax Level 3 specification. Prior to 1.0.8, Crass incorrectly treats a closing parenthesis after an escaped backslash as escaped while consuming the remnants of a bad URL. Crass therefore keeps declarations, style rules, or at-rules inside a bad URL token even though a browser treats them as live CSS. A sanitizer that parses untrusted CSS with Crass and reserializes it without rejecting the bad URL can allow CSS used for UI redress, external resource loading, or CSS-based data exfiltration, but this issue does not enable script execution in modern browsers. This issue is fixed in version 1.0.8.(CVE-2026-116695)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass recursively parses `CSS simple blocks and functions` without a depth guard. An attacker-controlled CSS value containing deeply nested blocks or functions can recurse until Ruby raises `SystemStackError`: stack level too deep, or cause excessive memory usage. Version 1.0.7 adds a configurable depth limit with a conservative default. This issue is fixed in version 1.0.7.(CVE-2026-61846)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when the `:preserve_comments` option is not enabled, which is the default, Crass discards CSS comments by recursively consuming the next token. An attacker-provided stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a `SystemStackError`, denying service to the parsing application. Preserving comments avoids this recursive path. This issue is fixed in version 1.0.7.(CVE-2026-61847)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.(CVE-2026-61848)","status":"published","published":"2026-11-04T13:54:56Z","modified":"2026-11-04T14:00:06.881270961Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4726","title":"rubygem-crass security update","description":"Crass is a pure Ruby CSS parser based on the CSS Syntax Level 3 spec.\r\n\r\nSecurity Fix(es):\n\nCrass is a Ruby CSS parser that is compliant with the CSS Syntax Level 3 specification. Prior to 1.0.8, Crass incorrectly treats a closing parenthesis after an escaped backslash as escaped while consuming the remnants of a bad URL. Crass therefore keeps declarations, style rules, or at-rules inside a bad URL token even though a browser treats them as live CSS. A sanitizer that parses untrusted CSS with Crass and reserializes it without rejecting the bad URL can allow CSS used for UI redress, external resource loading, or CSS-based data exfiltration, but this issue does not enable script execution in modern browsers. This issue is fixed in version 1.0.8.(CVE-2026-116695)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass recursively parses `CSS simple blocks and functions` without a depth guard. An attacker-controlled CSS value containing deeply nested blocks or functions can recurse until Ruby raises `SystemStackError`: stack level too deep, or cause excessive memory usage. Version 1.0.7 adds a configurable depth limit with a conservative default. This issue is fixed in version 1.0.7.(CVE-2026-61846)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when the `:preserve_comments` option is not enabled, which is the default, Crass discards CSS comments by recursively consuming the next token. An attacker-provided stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a `SystemStackError`, denying service to the parsing application. Preserving comments avoids this recursive path. This issue is fixed in version 1.0.7.(CVE-2026-61847)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.(CVE-2026-61848)","status":"published","published":"2026-11-04T13:54:57Z","modified":"2026-11-04T14:00:06.881129613Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-04T14:10:46.921518Z"},{"id":"OESA-2026-4760","title":"rubygem-crass security update","description":"Crass is a pure Ruby CSS parser based on the CSS Syntax Level 3 spec.\r\n\r\nSecurity Fix(es):\n\nCrass is a Ruby CSS parser that is compliant with the CSS Syntax Level 3 specification. Prior to 1.0.8, Crass incorrectly treats a closing parenthesis after an escaped backslash as escaped while consuming the remnants of a bad URL. Crass therefore keeps declarations, style rules, or at-rules inside a bad URL token even though a browser treats them as live CSS. A sanitizer that parses untrusted CSS with Crass and reserializes it without rejecting the bad URL can allow CSS used for UI redress, external resource loading, or CSS-based data exfiltration, but this issue does not enable script execution in modern browsers. This issue is fixed in version 1.0.8.(CVE-2026-116695)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass recursively parses `CSS simple blocks and functions` without a depth guard. An attacker-controlled CSS value containing deeply nested blocks or functions can recurse until Ruby raises `SystemStackError`: stack level too deep, or cause excessive memory usage. Version 1.0.7 adds a configurable depth limit with a conservative default. This issue is fixed in version 1.0.7.(CVE-2026-61846)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when the `:preserve_comments` option is not enabled, which is the default, Crass discards CSS comments by recursively consuming the next token. An attacker-provided stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a `SystemStackError`, denying service to the parsing application. Preserving comments avoids this recursive path. This issue is fixed in version 1.0.7.(CVE-2026-61847)\n\nCrass is a Ruby CSS parser that\u0026apos;s fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.(CVE-2026-61848)","status":"published","published":"2026-11-11T12:25:53Z","modified":"2026-11-11T12:45:03.917829561Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-11T13:08:46.301371Z"},{"id":"UBUNTU-CVE-2026-61848","description":"Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, when Crass parses input containing `non-ASCII characters`, inefficiencies in tracking the positions of `multi-byte characters` result in superlinear parsing time. An attacker-controlled CSS input consisting of many `non-ASCII characters` can therefore cause excessive CPU consumption and potentially denial of service. This issue is fixed in version 1.0.7.","status":"published","published":"2026-10-30T19:18:00Z","modified":"2026-11-05T04:30:40Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L","level":"medium"}],"updated_at":"2026-11-05T13:33:42.748455Z"}]}}