CVE-2026-79769

Published: Ago 25, 2026 Last Modified: Ago 25, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 5,5
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node#initialize_copy_with_args helper behind Node#dup and #clone, which unwrapped its source argument as an xmlNode without a type check. If application code calls this protected method with a non-Node argument (e.g., a Namespace), it reads an xmlNs out of bounds, crashing the process. This is only triggerable by a programming error and cannot be triggered by untrusted input or normal use of the public API. Only CRuby is affected. Version 1.19.4 adds a type check and raises TypeError.

843

Access of Resource Using Incompatible Type ('Type Confusion')

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality
Potential Impacts:
Read Memory Modify Memory Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart
Applicable Platforms
Languages: C, C++
View CWE Details
https://github.com/sparklemotion/nokogiri/security/advisori…
https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-g9g8-vgvw-g3…
https://www.vulncheck.com/advisories/nokogiri-before-invali…
https://www.vulncheck.com/advisories/nokogiri-before-invalid-memory-read-via-in…