Nokogiri updates packaged libxslt to v1.1.43 to resolve multiple CVEs

Summary

Nokogiri v1.18.4 upgrades its dependency libxslt to v1.1.43.

libxslt v1.1.43 resolves:

• CVE-2025-24855: Fix use-after-free of XPath context node
• CVE-2024-55549: Fix UAF related to excluded namespaces

Impact

CVE-2025-24855

• "Use-after-free due to xsltEvalXPathStringNs leaking xpathCtxt->node"
• MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
• Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/128
• NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2025-24855

CVE-2024-55549

• "Use-after-free related to excluded result prefixes"
• MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
• Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/127
• NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2024-55549