🚨 [security] Update nokogiri 1.18.10 → 1.19.1 (minor)

[depfu]

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

↗️ nokogiri (indirect, 1.18.10 → 1.19.1) · Repo · Changelog

Security Advisories 🚨

🚨 Nokogiri does not check the return value from xmlC14NExecute

Summary

Nokogiri's CRuby extension fails to check the return value from xmlC14NExecute in the method Nokogiri::XML::Document#canonicalize and Nokogiri::XML::Node#canonicalize. When canonicalization fails, an empty string is returned instead of raising an exception. This incorrect return value may allow downstream libraries to accept invalid or incomplete canonicalized XML, which has been demonstrated to enable signature validation bypass in SAML libraries.

JRuby is not affected, as the Java implementation correctly raises RuntimeError on canonicalization failure.

Mitigation

Upgrade to Nokogiri >= 1.19.1.

Severity

The maintainers have assessed this as Medium severity. Nokogiri itself is a parsing library without a clear security boundary related to canonicalization, so the direct impact is that a method returns incorrect data on invalid input. However, this behavior was exploited in practice to bypass SAML signature validation in downstream libraries (see References).

Credit

This vulnerability was responsibly reported by HackerOne researcher d4d.

Release Notes

1.19.1

v1.19.1 / 2026-02-16

Security

• [CRuby] Address unchecked return value from xmlC14NExecute which was a contributing cause to ruby-saml GHSA-x4h9-gwv3-r4m4. See GHSA-wx95-c6cv-8532 for more information.

sha256 checksums

cfdb0eafd9a554a88f12ebcc688d2b9005f9fce42b00b970e3dc199587b27f32  nokogiri-1.19.1-aarch64-linux-gnu.gem
1e2150ab43c3b373aba76cd1190af7b9e92103564063e48c474f7600923620b5  nokogiri-1.19.1-aarch64-linux-musl.gem
0a39ed59abe3bf279fab9dd4c6db6fe8af01af0608f6e1f08b8ffa4e5d407fa3  nokogiri-1.19.1-arm-linux-gnu.gem
3a18e559ee499b064aac6562d98daab3d39ba6cbb4074a1542781b2f556db47d  nokogiri-1.19.1-arm-linux-musl.gem
dfe2d337e6700eac47290407c289d56bcf85805d128c1b5a6434ddb79731cb9e  nokogiri-1.19.1-arm64-darwin.gem
1e0bda88b1c6409f0edb9e0c25f1bf9ff4fa94c3958f492a10fcf50dda594365  nokogiri-1.19.1-java.gem
110d92ae57694ae7866670d298a5d04cd150fae5a6a7849957d66f171e6aec9b  nokogiri-1.19.1-x64-mingw-ucrt.gem
7093896778cc03efb74b85f915a775862730e887f2e58d6921e3fa3d981e68bf  nokogiri-1.19.1-x86_64-darwin.gem
1a4902842a186b4f901078e692d12257678e6133858d0566152fe29cdb98456a  nokogiri-1.19.1-x86_64-linux-gnu.gem
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598b327f36df0b172abd57b68b18979a6e14219353bca87180c31a51a00d5ad3  nokogiri-1.19.1.gem

1.19.0

v1.19.0 / 2025-12-28

Ruby

This release is focused on changes to Ruby version support, and is otherwise functionally identical to v1.18.10.

• Introduce native gem support for Ruby 4.0. #3590
• End support for Ruby 3.1, for which upstream support ended 2025-03-26.
• End support for JRuby 9.4 (which targets Ruby 3.1 compatibility).

sha256 checksums

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eb70507f5e01bc23dad9b8dbec2b36ad0e61d227b42d292835020ff754fb7ba9  nokogiri-1.19.0-aarch64-linux-musl.gem
572a259026b2c8b7c161fdb6469fa2d0edd2b61cd599db4bbda93289abefbfe5  nokogiri-1.19.0-arm-linux-gnu.gem
23ed90922f1a38aed555d3de4d058e90850c731c5b756d191b3dc8055948e73c  nokogiri-1.19.0-arm-linux-musl.gem
0811dfd936d5f6dd3f6d32ef790568bf29b2b7bead9ba68866847b33c9cf5810  nokogiri-1.19.0-arm64-darwin.gem
5f3a70e252be641d8a4099f7fb4cc25c81c632cb594eec9b4b8f2ca8be4374f3  nokogiri-1.19.0-java.gem
05d7ed2d95731edc9bef2811522dc396df3e476ef0d9c76793a9fca81cab056b  nokogiri-1.19.0-x64-mingw-ucrt.gem
1dad56220b603a8edb9750cd95798bffa2b8dd9dd9aa47f664009ee5b43e3067  nokogiri-1.19.0-x86_64-darwin.gem
f482b95c713d60031d48c44ce14562f8d2ce31e3a9e8dd0ccb131e9e5a68b58c  nokogiri-1.19.0-x86_64-linux-gnu.gem
1c4ca6b381622420073ce6043443af1d321e8ed93cc18b08e2666e5bd02ffae4  nokogiri-1.19.0-x86_64-linux-musl.gem
e304d21865f62518e04f2bf59f93bd3a97ca7b07e7f03952946d8e1c05f45695  nokogiri-1.19.0.gem

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 19 commits:

• version bump to v1.19.1
• doc: update CHANGELOG for upcoming v1.19.1
• C14n raise on failure (#3600)
• Raise RuntimeError when canonicalization fails
• Thank sponsors in the README
• dep: update rdoc to v7
• version bump to v1.19.0
• dev: convert scripts/test-gem-set to use mise
• dep: Add native Ruby 4 support, drop Ruby 3.1 support (v1.19.x) (#3592)
• Skip the parser compression test for Windows system libs
• ci: temporarily pin to setup-ruby with windows ruby 4
• dep: update to minitest 6
• dep: require JRuby >= 10.0
• dep: add support for native Ruby 4.0 gem
• ci: bump versions in CI images
• ci: avoid bundler collisions in downstream tests
• ci: use arm64 hosts to speed things up
• dep: make sure rdoc is an optional dependency
• dep(dev): drop explicit Bundler dependency

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