ruby-nokogiri: Nokogiri versions before 1.19.4 contain a possible invalid (out-of-bounds) memory read in the protected internal Node...
CVE-2026-79769 is fixed in ruby-nokogiri on 1 platform by DEBIAN-CVE-2026-79769 (version 1.19.4+dfsg-1), released August 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| ruby-nokogiri · Debian 14 | 1.19.4+dfsg-1 | DEBIAN-CVE-2026-79769 | Aug 27, 2026 |
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