Use After Free Affecting nokogiri package, versions <1.13.2
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-NOKOGIRI-19426884
- published29 Aug 2026
- disclosed25 Aug 2026
- creditUnknown
Introduced: 25 Aug 2026
NewCVE-2022-51000 (opens in a new tab)How to fix?
Upgrade nokogiri to version 1.13.2 or higher.
Overview
nokogiri is a gem for parsing HTML, XML, SAX, and Reader.
Affected versions of this package are vulnerable to Use After Free in the processing of XML documents with untrusted XSL stylesheets or when parsing untrusted documents with specific parse options enabled. An attacker can cause denial of service, memory disclosure, or execute arbitrary code by supplying crafted XML or XSL input. This is only exploitable if the application transforms XML with untrusted XSL stylesheets or parses untrusted documents with the DTDVALID option set to true and NOENT set to false.