CVE-2026-57434

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-9cv2-cfxc-v4v2	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:*

History

25 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) Nokogiri es una biblioteca XML y HTML de código abierto para el lenguaje de programación Ruby. Anteriormente a la 1.19.4, Nokogiri contiene un error al llamar a ciertos métodos en clases envoltorio nativas asignadas pero no inicializadas que heredan de Nokogiri::XML::Node. Esto causó una desreferencia de puntero NULL que podría bloquear el proceso. Esta vulnerabilidad está corregida en la 1.19.4.

Information

Published : 2026-06-25 15:16

Updated : 2026-10-25 23:10

NVD link : CVE-2026-57434

Mitre link : CVE-2026-57434

CVE.ORG link : CVE-2026-57434

JSON object : View

Products Affected

nokogiri

nokogiri

CWE

CWE-476

NULL Pointer Dereference

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