{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61847","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-10T20:28:17.513Z","datePublished":"2026-10-30T18:44:22.330Z","dateUpdated":"2026-10-30T22:15:42.844Z"},"containers":{"cna":{"title":"Crass: A large number of adjacent CSS comments can trigger a SystemStackError","problemTypes":[{"descriptions":[{"cweId":"CWE-674","lang":"en","description":"CWE-674: Uncontrolled Recursion","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"references":[{"name":"https://github.com/rgrove/crass/security/advisories/GHSA-wwpr-jff3-395c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/rgrove/crass/security/advisories/GHSA-wwpr-jff3-395c"},{"name":"https://github.com/rgrove/crass/commit/25d78cc607c54262e9d43ea1930f3ba5bb03dfb5","tags":["x_refsource_MISC"],"url":"https://github.com/rgrove/crass/commit/25d78cc607c54262e9d43ea1930f3ba5bb03dfb5"},{"name":"https://github.com/rgrove/crass/releases/tag/v1.0.7","tags":["x_refsource_MISC"],"url":"https://github.com/rgrove/crass/releases/tag/v1.0.7"}],"affected":[{"vendor":"rgrove","product":"crass","versions":[{"version":"< 1.0.7","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-30T18:44:22.330Z"},"descriptions":[{"lang":"en","value":"Crass is a Ruby CSS parser that'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."}],"source":{"advisory":"GHSA-wwpr-jff3-395c","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T21:18:11.231526Z","id":"CVE-2026-61847","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-30T22:15:42.844Z"}}]}}