Access of Resource Using Incompatible Type ('Type Confusion') Affecting nokogiri package, versions <1.19.4
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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Access of Resource Using Incompatible Type ('Type Confusion') vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-RUBY-NOKOGIRI-19426891
- published29 Aug 2026
- disclosed25 Aug 2026
- creditUnknown
Introduced: 25 Aug 2026
NewCVE-2026-79769 (opens in a new tab)How to fix?
Upgrade nokogiri to version 1.19.4 or higher.
Overview
nokogiri is a gem for parsing HTML, XML, SAX, and Reader.
Affected versions of this package are vulnerable to Access of Resource Using Incompatible Type ('Type Confusion') in the initialize_copy_with_args function. An attacker can cause a process crash by passing a non-Node argument, such as a Namespace, which leads to an out-of-bounds memory read. This is only exploitable if application code incorrectly calls the protected method with an invalid argument type; it cannot be triggered by untrusted input or normal use of the public API.