CVE-2025-71346

Name	CVE-2025-71346
Description	Nokogiri before 1.18.8 packages a vulnerable version of libxml2 (before 2.13.8) that contains a heap-based buffer under-read (CVE-2025-32415) in the xmlSchemaIDCFillNodeTables function in xmlschemas.c. The issue can be triggered when validating against an untrusted XML Schema, or when validating untrusted documents against trusted schemas that use xsd:keyref in combination with recursively defined types that have additional identity constraints. Upstream and MITRE rate this issue as low severity.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ruby-nokogiri (PTS)	bullseye	1.11.1+dfsg-2	fixed
	bullseye (security)	1.11.1+dfsg-2+deb11u1	fixed
	bookworm	1.13.10+dfsg-2	fixed
	trixie	1.18.2+dfsg-1	fixed
	forky, sid	1.19.4+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ruby-nokogiri	source	(unstable)	(not affected)

- ruby-nokogiri <not-affected> (Debian uses the system copy of libxml)