{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-116695",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-26T20:00:59.831Z",
        "datePublished": "2026-10-27T20:10:34.010Z",
        "dateUpdated": "2026-10-27T20:10:34.010Z"
    },
    "containers": {
        "cna": {
            "title": "Crass: Incorrect tokenization of bad URLs enables CSS sanitizer bypass",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-436",
                            "lang": "en",
                            "description": "CWE-436: Interpretation Conflict",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "subIntegrityImpact": "LOW",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 5.3,
                        "baseSeverity": "MEDIUM",
                        "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"
                    }
                }
            ],
            "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"
                }
            ],
            "affected": [
                {
                    "vendor": "rgrove",
                    "product": "crass",
                    "versions": [
                        {
                            "version": "< 1.0.8",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-27T20:10:34.010Z"
            },
            "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."
                }
            ],
            "source": {
                "advisory": "GHSA-pq4g-8rxf-4g29",
                "discovery": "UNKNOWN"
            }
        }
    }
}