CRITICAL 9.3 NVD
CVE-2025-71407
Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting DTD validation errors with long QName prefixes, and a use-after-
Nokogiri before 1.18.3 contains a stack buffer overflow vulnerability in libxml2 when reporting DTD validation errors with long QName prefixes, and a use-after-free vulnerability during validation against untrusted XML Schemas. Attackers can trigger these vulnerabilities by providing malicious DTD content or untrusted XSD files to cause denial of service or potential code execution.
References
- https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vvfq-8hwr-qm4m
- https://www.vulncheck.com/advisories/nokogiri-before-stack-buffer-overflow-and-use-after-f
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-08-25 via NVD.
Risk Timeline
CVE Disclosed2026-08-25 · -1 days ago
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