CVE-2026-116695

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Source
https://cve.org/CVERecord?id=CVE-2026-116695
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-116695.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-116695
Aliases
Downstream
CGA (68)
DEBIAN (1)
UBUNTU (1)
Published
2026-10-27T20:10:34Z
Modified
2026-10-30T02:33:27Z
Severity
  • 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Crass: Incorrect tokenization of bad URLs enables CSS sanitizer bypass
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-436"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/116xxx/CVE-2026-116695.json"
}
References

Affected packages

Git / github.com/rgrove/crass

Affected ranges

Type
GIT
Repo
https://github.com/rgrove/crass
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fe775091c79c35c924655d415ad78b04be7b7ee2
Fixed
689fc45c632fdf3803b2f4e844ffc9cca3b08f34
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "1.0.8"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "689fc45c632fdf3803b2f4e844ffc9cca3b08f34"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "v1.0.8",
            "range": [
                {
                    "fixed": "fe775091c79c35c924655d415ad78b04be7b7ee2"
                }
            ],
            "source": "REFERENCES_TAG"
        }
    ]
}

Affected versions

v0.*
v0.0.1
v0.0.2
v0.1.0
v0.2.0
v0.2.1
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.7

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-116695.json"