{"schema":"threatline.record/2","record":{"id":"CVE-2026-116695","aliases":["GHSA-pq4g-8rxf-4g29"],"summary":"Crass: Incorrect tokenization of bad URLs enables CSS sanitizer bypass","details":"Crass 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.","categories":["Unclassified"],"product":"crass","vendor":"rgrove","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-116695","source_modified_at":"2026-10-27T20:10:34.010Z","fetched_at":"2026-10-27T21:14:11.489891Z","product":"crass","vendor":"rgrove","versions":[{"version":"< 1.0.8","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-27T20:10:34.010Z","modified_at":"2026-10-27T20:10:34.010Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-116695","fetched_at":"2026-10-27T21:14:11.489891Z","source_modified_at":"2026-10-27T20:10:34.010Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/rgrove/crass/security/advisories/GHSA-pq4g-8rxf-4g29","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/rgrove/crass/commit/689fc45c632fdf3803b2f4e844ffc9cca3b08f34","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/rgrove/crass/releases/tag/v1.0.8","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-27T20:10:34.010Z","content_hash":"3a3a7cab9d43f5771e9a02348fb5864e5c7b7cae55950aa2b6101a2046c4391a"}}