{"id":"GHSA-8vfg-2r28-hvhj","summary":"Crass: Non-ASCII characters cause superlinear CPU consumption","details":"### 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.","aliases":["CVE-2026-61848"],"modified":"2026-10-29T16:45:04.487777722Z","published":"2026-10-29T16:35:29Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-10-29T16:35:29Z","nvd_published_at":null,"cwe_ids":["CWE-400"]},"references":[{"type":"WEB","url":"https://github.com/rgrove/crass/security/advisories/GHSA-8vfg-2r28-hvhj"},{"type":"PACKAGE","url":"https://github.com/rgrove/crass"},{"type":"WEB","url":"https://github.com/rgrove/crass/releases/tag/v1.0.7"},{"type":"WEB","url":"http://github.com/rgrove/crass/commit/da29664648bf80a97a6439e030a4814291c9afa5"}],"affected":[{"package":{"name":"crass","ecosystem":"RubyGems","purl":"pkg:gem/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"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-8vfg-2r28-hvhj/GHSA-8vfg-2r28-hvhj.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"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"}]}