Uncontrolled Recursion Affecting crass package, versions <1.0.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUBY-CRASS-22132613
- published2 Nov 2026
- disclosed29 Oct 2026
- creditUnknown
Introduced: 29 Oct 2026
NewCVE-2026-61847 (opens in a new tab)How to fix?
Upgrade crass to version 1.0.7 or higher.
Overview
Affected versions of this package are vulnerable to Uncontrolled Recursion through the recursive processing of CSS comments when the :preserve_comments option is not enabled. An attacker can cause excessive recursion and trigger a stack overflow by supplying a stylesheet with a very large number of adjacent comments.
Workaround
This vulnerability can be mitigated by setting the :preserve_comments option to true.