Skip to content
CVE PROGRAM SOURCE RECORD1.7 Low

CVE-2026-57436

Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Description

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Document#root= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. This vulnerability is fixed in 1.19.4.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

sparklemotion nokogiri

  • < 1.19.4affected

References