CVE-2026-57436

Published June 25th, 2026

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CVSS v3

N/A

CVSS v2

N/A

Affected

PROJECT

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.

sparklemotion/nokogiri

Nokogiri (鋸) makes it easy and painless to work with XML and HTML from Ruby.

GitHub

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