This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-79772 →

DEBIAN-CVE-2026-79772

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure in...

Original description

The description as published by the source.

Nokogiri versions before 1.19.1 fail to check the return value from xmlC14NExecute in the canonicalize method, returning an empty string on failure instead of raising an exception. Attackers can exploit this to bypass signature validation in downstream SAML libraries by providing invalid canonicalized XML that is incorrectly accepted as valid.

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":"1.19.1+dfsg-1"}]}]

References

advisory security-tracker.debian.org