Vulnerability Description
Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass recursively parses `CSS simple blocks and functions` without a depth guard. An attacker-controlled CSS value containing deeply nested blocks or functions can recurse until Ruby raises `SystemStackError`: stack level too deep, or cause excessive memory usage. Version 1.0.7 adds a configurable depth limit with a conservative default. This issue is fixed in version 1.0.7.
Related Weaknesses (CWE)
References
- https://github.com/rgrove/crass/commit/cf68287356ec6e20d51cfc4a2d0c3912b7334e99
- https://github.com/rgrove/crass/releases/tag/v1.0.7
- https://github.com/rgrove/crass/security/advisories/GHSA-6jxj-px6v-747w
FAQ
What is CVE-2026-61846?
CVE-2026-61846 is a documented vulnerability. Crass is a Ruby CSS parser that's fully compliant with the CSS Syntax Level 3 specification. Prior to 1.0.7, Crass recursively parses `CSS simple blocks and functions` without a depth guard. An attack...
How severe is CVE-2026-61846?
CVSS scoring is not yet available for CVE-2026-61846. Check NVD for updates.
Is there a patch for CVE-2026-61846?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.