Memory Leak Affecting ruby-nokogiri package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.3% (23rd percentile)

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  • Snyk IDSNYK-DEBIAN12-RUBYNOKOGIRI-19257868
  • published26 Aug 2026
  • disclosed25 Aug 2026

Introduced: 25 Aug 2026

NewCVE-2026-79771  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

There is no fixed version for Debian:12 ruby-nokogiri.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-nokogiri package and not the ruby-nokogiri package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1