Unchecked Return Value Affecting ruby-nokogiri package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-DEBIAN13-RUBYNOKOGIRI-19257869
  • published26 Aug 2026
  • disclosed25 Aug 2026

Introduced: 25 Aug 2026

NewCVE-2026-79772  (opens in a new tab)
CWE-252  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 ruby-nokogiri.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-nokogiri package and not the ruby-nokogiri package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1