Bug 2571274 (CVE-2026-126064) - CVE-2026-126064 nokogiri: nokogiri: Denial of Service via use-after-free when replacing attribute values
Summary: CVE-2026-126064 nokogiri: nokogiri: Denial of Service via use-after-free when...
Keywords:
Status: NEW
Alias: CVE-2026-126064
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
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Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 21:11 UTC by OSIDB Bzimport
Modified: 2026-11-11 01:38 UTC (History)
11 users (show)

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Description OSIDB Bzimport 2026-11-10 21:11:35 UTC 
Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.5, the CRuby native extension can leave Ruby wrappers pointing to freed memory when Nokogiri::XML::Node#[]= or Nokogiri::XML::Node#lang= replaces an existing attribute value after code has accessed the attribute's child nodes. Replacing the value frees native child nodes while their wrappers remain reachable, and later use of those wrappers can cause an invalid read or process segfault. JRuby is not affected. This issue is fixed in version 1.19.5.
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