{"items":[{"id":"NVI-00009018","kind":"vulnerability","title":"Crass: Deeply nested CSS blocks and functions can trigger a SystemStackError or excessive memory usage","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-6jxj-px6v-747w","CVE-2026-61846"],"plain_summary":"GitHub lists this reviewed advisory for crass. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-6c004a8e5d1a35c4f88881fffcba4936"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-11-05T03:17:29.340Z","value":"6.3 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6c004a8e5d1a35c4f88881fffcba4936"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-79b1e43f748a09576d5d17558c559a08","url":"https://github.com/advisories/GHSA-6jxj-px6v-747w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6jxj-px6v-747w","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-6c004a8e5d1a35c4f88881fffcba4936","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61846","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-61846","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T15:05:24.474Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-79b1e43f748a09576d5d17558c559a08"],"technology":"crass","known_exclusions":[],"conditions_summary":"### Impact\n\nCrass recursively parses CSS simple blocks and functions without a depth guard. An attacker-controlled value containing many deeply nested blocks can recurse until Ruby raises `SystemStackError: stack level too deep`, or can cause excessive memory usage.\n\n### Patches\n\nThis is fixed in Crass 1.0.7, which adds a configurable depth limit with a conservative default.\n\n### Workarounds\n\nAdd `SystemStackError` handling around Crass calls in your application. Buy more RAM.","public_affected_ranges":["< 1.0.7"]}],"null_published_at":"2026-11-08T19:53:48.744Z","source_updated_at":"2026-10-29T16:35:18.000Z","source_disclosed_at":"2026-10-29T16:35:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00009018","kind":"vulnerability","title":"Crass: Deeply nested CSS blocks and functions can trigger a SystemStackError or excessive memory usage","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-6jxj-px6v-747w","CVE-2026-61846"],"plain_summary":"GitHub lists this reviewed advisory for crass. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-79b1e43f748a09576d5d17558c559a08"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-79b1e43f748a09576d5d17558c559a08","url":"https://github.com/advisories/GHSA-6jxj-px6v-747w","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-6jxj-px6v-747w","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-79b1e43f748a09576d5d17558c559a08"],"technology":"crass","known_exclusions":[],"conditions_summary":"### Impact\n\nCrass recursively parses CSS simple blocks and functions without a depth guard. An attacker-controlled value containing many deeply nested blocks can recurse until Ruby raises `SystemStackError: stack level too deep`, or can cause excessive memory usage.\n\n### Patches\n\nThis is fixed in Crass 1.0.7, which adds a configurable depth limit with a conservative default.\n\n### Workarounds\n\nAdd `SystemStackError` handling around Crass calls in your application. Buy more RAM.","public_affected_ranges":["< 1.0.7"]}],"null_published_at":"2026-10-31T22:13:27.127Z","source_updated_at":"2026-10-29T16:35:18.000Z","source_disclosed_at":"2026-10-29T16:35:16.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:56:08.420Z"}],"next_cursor":null,"snapshot_revision":"42594"}