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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-79769

Nokogiri before 1.19.4 Invalid Memory Read via initialize_copy_with_args

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

sparklemotion nokogiri

Default version status: unaffected

  • 0 to < 1.19.4affected
  • 1.19.4unaffected
pkg:gem/nokogiri

References