CVE-2026-79772
CVE-2026-79772 updated by NVD
Summary
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.
Affected packages
| Ecosystem | Package | Affected versions | Fixed versions |
|---|---|---|---|
| RubyGems | nokogiri | — | 1.19.1 |
Remediation: Upgrade to 1.19.1 or later.
References
Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.
Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.
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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.