Interpretation Conflict Affecting ruby-crass package, versions *


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.35% (29th percentile)

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  • Snyk IDSNYK-DEBIAN12-RUBYCRASS-21771494
  • published28 Oct 2026
  • disclosed27 Oct 2026

Introduced: 27 Oct 2026

NewCVE-2026-116695  (opens in a new tab)
CWE-436  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 ruby-crass.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-crass package and not the ruby-crass package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1