This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-57436 →

DEBIAN-CVE-2026-57436

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...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 ruby-nokogiri

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 ruby-nokogiri

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 ruby-nokogiri

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.19.4+dfsg-1"}]}]

References

advisory security-tracker.debian.org