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CVE-2026-79769

Nokogiri before 1.19.4 Invalid Memory Read via initialize_copy_with_args PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
sparklemotion / nokogiriaffected 0 before 1.19.4; unaffected 1.19.4

CWE

CWE-843

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.