CVE-2025-71406

Description

Nokogiri before 1.18.4 bundles a vulnerable version of libxslt (prior to 1.1.43) that contains two use-after-free vulnerabilities: CVE-2025-24855 (use-after-free of the XPath context node due to xsltEvalXPathStringNs leaking xpathCtxt->node) and CVE-2024-55549 (use-after-free related to excluded result prefixes/namespaces). Processing crafted XSLT can trigger memory corruption. Nokogiri 1.18.4 upgrades the bundled libxslt to 1.1.43 to resolve these issues.

CVSS Vector

References

• https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-mrxw-mxhj-p664
• https://www.vulncheck.com/advisories/nokogiri-before-use-after-free-via-libxslt