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What are the severity rating and CVSS score of CVE-2025-71406?

The vulnerability CVE-2025-71406 has a severity score of 7.8 out of 10.0, which is classified as HIGH severity.

Which products and vendors are affected by CVE-2025-71406?

This vulnerability affects nokogiri from sparklemotion.

How can I mitigate or patch CVE-2025-71406?

Consult the vendor's security advisory for details and patches.

CVE-2025-71406: CVE-2025-71406 Vulnerability (HIGH Severity, CVSS: 7.8)

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.

Executive Summary

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Technical Details

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Mitigations

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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References

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Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

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Additional Metadata

{
  "score": "7.8",
  "pubDate": "2026-08-25T16:16:45.497Z",
  "pubdate": "2026-08-25T16:16:45.497Z"
}

Sceawere

CVE-2025-71406 Verified Sceawere Triage Sources: NVD / CISA KEV

Vulnerability Metadata

Narrative and Response

Description

Executive Summary

Technical Details

Mitigations

References

Additional Metadata