{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "crass",
          "vendor": "rgrove",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.8"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-436",
              "description": "CWE-436: Interpretation Conflict",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T20:10:34.010Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/rgrove/crass/security/advisories/GHSA-pq4g-8rxf-4g29",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/rgrove/crass/security/advisories/GHSA-pq4g-8rxf-4g29"
        },
        {
          "name": "https://github.com/rgrove/crass/commit/689fc45c632fdf3803b2f4e844ffc9cca3b08f34",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rgrove/crass/commit/689fc45c632fdf3803b2f4e844ffc9cca3b08f34"
        },
        {
          "name": "https://github.com/rgrove/crass/releases/tag/v1.0.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/rgrove/crass/releases/tag/v1.0.8"
        }
      ],
      "source": {
        "advisory": "GHSA-pq4g-8rxf-4g29",
        "discovery": "UNKNOWN"
      },
      "title": "Crass: Incorrect tokenization of bad URLs enables CSS sanitizer bypass"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-116695",
    "datePublished": "2026-10-27T20:10:34.010Z",
    "dateReserved": "2026-10-26T20:00:59.831Z",
    "dateUpdated": "2026-10-27T20:10:34.010Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}