PT-2026-81360 · Rubygems · Nokogiri

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CVE-2026-79771

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Published

2026-05-06

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Updated

2026-08-25

CVSS v4.0

6.9

Medium

VectorAV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions Nokogiri versions prior to 1.19.3
Description A memory leak exists in the XSLT Stylesheet transform method when processing Ruby strings that contain null bytes. An attacker can trigger this by providing input containing null bytes to transform parameters, leading to leaked heap allocations. This can result in a denial of service for long-running processes.
Recommendations Update to version 1.19.3 or later.

Exploit

Fix

DoS

Memory Leak

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Weakness Enumeration

Related Identifiers

CVE-2026-79771
GHSA-RH9X-7XJC-VWX2
GHSA-V2FC-QM4H-8HQV

Affected Products

Nokogiri