CVE-2026-57434CWE-476

Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes

Low · published June 25, 2026

CVSS v4.0
1.7
EPSS
0%
Percentile
38.9
In the wild
Unconfirmed
What it is

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri contains a bug when calling certain methods on allocated-but-uninitialized native wrapper classes that inherit from Nokogiri::XML::Node. This caused a NULL pointer dereference that could crash the process. This vulnerability is fixed in 1.19.4.

The record
Technical detail
CVSS v4.0
1.7 · LOW
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
EPSS
0.00460 · 38.9th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2026-06-25T14:32Z
EPSS history
Timeline
  • 25 JUN 14:32Z
    Nokogiri: Null Pointer Dereference calling methods on uninitialized wrapper classes
    cvelistv5