{"items":[{"id":"NVI-00009155","kind":"vulnerability","title":"Crass: A large number of adjacent CSS comments can trigger a SystemStackError","revision":3,"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-wwpr-jff3-395c","CVE-2026-61847"],"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-106670d9704570aa9410b8adfbb7ea21"],"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":"2026-10-30T23:17:12.003Z","value":"6.3 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-0d078a0878a20f37694d18c8c4cbf866"},{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.486%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.41808. Missing scores are unknown.","source_id":"sr-106670d9704570aa9410b8adfbb7ea21"}],"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-d358846ea1d4de2951183708664436d7","url":"https://github.com/advisories/GHSA-wwpr-jff3-395c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wwpr-jff3-395c","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"},{"id":"sr-0d078a0878a20f37694d18c8c4cbf866","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61847","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-61847","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-04T02:47:38.696Z"},{"id":"sr-106670d9704570aa9410b8adfbb7ea21","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-61847","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.859Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d358846ea1d4de2951183708664436d7"],"technology":"crass","known_exclusions":[],"conditions_summary":"### Impact\n\nWhen the `:preserve_comments` option is not enabled (which is the default behavior), Crass discards CSS comments by recursively consuming the next token. An attacker who provides a stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a `SystemStackError`.\n\n### Patches\n\nThis is fixed in Crass 1.0.7, which no longer recurses when discarding comments.\n\n### Workarounds\n\nSet the `:preserve_comments` option to `true` if this is acceptable to your use case (recursion doesn't occur when comments are preserved).","public_affected_ranges":["< 1.0.7"]}],"null_published_at":"2026-11-04T10:04:47.603Z","source_updated_at":"2026-10-29T16:35:23.000Z","source_disclosed_at":"2026-10-29T16:35:23.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:08.420Z"},{"id":"NVI-00009155","kind":"vulnerability","title":"Crass: A large number of adjacent CSS comments can trigger a SystemStackError","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-wwpr-jff3-395c","CVE-2026-61847"],"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-d358846ea1d4de2951183708664436d7"],"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-d358846ea1d4de2951183708664436d7","url":"https://github.com/advisories/GHSA-wwpr-jff3-395c","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wwpr-jff3-395c","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:08.420Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-d358846ea1d4de2951183708664436d7"],"technology":"crass","known_exclusions":[],"conditions_summary":"### Impact\n\nWhen the `:preserve_comments` option is not enabled (which is the default behavior), Crass discards CSS comments by recursively consuming the next token. An attacker who provides a stylesheet containing a very large number of adjacent comments can cause excessive recursion and trigger a `SystemStackError`.\n\n### Patches\n\nThis is fixed in Crass 1.0.7, which no longer recurses when discarding comments.\n\n### Workarounds\n\nSet the `:preserve_comments` option to `true` if this is acceptable to your use case (recursion doesn't occur when comments are preserved).","public_affected_ranges":["< 1.0.7"]}],"null_published_at":"2026-10-31T22:13:31.287Z","source_updated_at":"2026-10-29T16:35:23.000Z","source_disclosed_at":"2026-10-29T16:35:23.000Z","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":"40769"}