Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-79771

Nokogiri versions before 1.19.3 contain a memory leak in the XSLT Stylesheet transform method when processing Ruby strings containing null bytes. Attackers can exploit this by passing attacker-controlled input with null bytes to transform parameters, causing heap allocations to leak and enabling denial of service against long-running processes.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 22.6%
CVSS Severity
CVSS v3 Score 5.3
Products affected by CVE-2026-79771


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