Vulnerability DatabaseCVE-2026-57434
Mend.io Vulnerability Database
The largest open source vulnerability database
What is a Vulnerability ID?
New vulnerability? Tell us about it!
CVE-2026-57434
Published:June 25, 2026
Updated:August 04, 2026
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.
Affected Packages
nokogiri (RUBY):
Affected version(s) >=1.0.0 <1.19.4
Fix Suggestion:
Update to version 1.19.4
Related Resources (4)
https://nvd.nist.gov/vuln/detail/CVE-2026-57434
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57434.json
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-9cv2-cfxc-v4v2
https://github.com/sparklemotion/nokogiri
Do you need more information?
Contact Us
CVSS v4
Base Score:
1.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
NULL Pointer Dereference
CWE-476
EPSS
Base Score:
0.36