Bug 2497305

Summary:	CVE-2026-57434 rubygem-nokogiri: Nokogiri: Denial of Service via NULL pointer dereference [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vipul Nair <vinair>
Component:	rubygem-nokogiri	Assignee:	Mamoru TASAKA <mtasaka>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	low
Version:	rawhide	CC:	mtasaka, pvalena, vondruch
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["eed1b86a-14f1-42ca-8da1-ba3dad81b483"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-07-06 14:09:51 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2492935

Description Vipul Nair 2026-07-06 09:22:00 UTC

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could crash the process. This vulnerability is fixed in 1.19.4.

Comment 1 Mamoru TASAKA 2026-07-06 14:09:51 UTC

Fixed in 1.19.4 which is already pushed.