Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Document#root= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. This vulnerability is fixed in 1.19.4.

oracle CPUOct2026: MySQL Cluster >=9.7.0|<=9.7.4

oracle CPUOct2026: MySQL Cluster >=8.0.0|<=8.0.38

oracle CPUOct2026: MySQL Cluster >=8.4.0|<=8.4.13

oracle CPUOct2026: MySQL Cluster >=8.0.0|<=8.0.50

oracle CPUOct2026: MySQL Cluster >=26.7.0|<=26.7.2

oracle CPUOct2026: MySQL Server >=8.4.0|<=8.4.13

oracle CPUOct2026: MySQL Server >=9.7.0|<=9.7.4

An update of the rubygem package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4,     Nokogiri::XML::Document#root= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD     node to be set as the document root. The result is a heap use-after-free during garbage collection or     finalization, leading to an invalid memory read or potentially a segfault. This vulnerability is fixed in     1.19.4. (CVE-2026-57436)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
332554	Photon OS 5.0: Rubygem PHSA-2026-5.0-91-0911	Nessus	PhotonOS Local Security Checks	Local	medium
325969	Photon OS 4.0: Rubygem PHSA-2026-4.0-1052	Nessus	PhotonOS Local Security Checks	Local	high
324558	Photon OS 5.0: Rubygem PHSA-2026-5.0-0911	Nessus	PhotonOS Local Security Checks	Local	medium
323617	Linux Distros Unpatched Vulnerability : CVE-2026-57436	Nessus	Misc.	Local	medium

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CVE-2026-57436

medium

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medium

high

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medium