Critical Photon OS Security Update - PHSA-2026-5.0-0857

Updates of 'libssh2', 'rubygem-nokogiri', 'glibc', 'strongswan' packages of Photon OS have been released...

Unity Linux 20.1060e / 20.1070e Security Update: rubygem-nokogiri (UTSA-2026-016661)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016661 advisory. Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE...

Unity Linux 20.1070e Security Update: nekohtml (UTSA-2026-016755)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016755 advisory. org.cyberneko.html is an html parser written in Java. The fork of org.cyberneko.html used by Nokogiri Rubygem raises a java.lang.OutOfMemoryError exception when...

Unity Linux 20.1070e Security Update: rubygem-nokogiri (UTSA-2026-016729)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016729 advisory. Nokogiri is an open source XML and HTML library for Ruby. Nokogiri = 1.13.4. There are no known workarounds for this issue. Tenable has extracted the preceding...

Unity Linux 20.1060e / 20.1070e Security Update: rubygem-nokogiri (UTSA-2026-016636)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016636 advisory. Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri v1.12.4 and earlier, on JRuby only, the SAX parse...

Astra Linux - уязвимость в ruby-nokogiri

Nokogiri is an open-source XML and HTML library for Ruby. Nokogiri contains a regular expression that is inefficient and prone to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri = 1.13.4. There are no known solutions or...

Astra Linux - уязвимость в ruby-nokogiri

Nokogiri is a Rubygem that provides HTML, XML, SAX, and Reader parsers, with support for XPath and CSS selectors. In Nokogiri versions prior to 1.11.0.rc4, there was an XXE vulnerability. XML schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accesse...

Astra Linux - уязвимость в ruby-nokogiri

A command injection vulnerability exists in Nokogiri v1.10.3 and earlier. This vulnerability allows commands to be executed in a subprocess via Ruby’s Kernel.open method. Processes become vulnerable only if the undocumented method Nokogiri::CSS::Tokenizerloadfile is called with unsafe user input ...

Important Photon OS Security Update - PHSA-2026-4.0-1018

Updates of 'rubygem-nokogiri' packages of Photon OS have been released...

GHSA-V2FC-QM4H-8HQV Nokogiri XSLT transform has a memory leak

Summary Nokogiri's Nokogiri::XSLT::Stylesheettransform leaks a small heap allocation when passed a Ruby string parameter containing a null byte. For applications that pass attacker-controlled input through XSLT.transform parameters, this may be a vector for a denial of service attack against...

Nokogiri XSLT transform has a memory leak

Summary Nokogiri's Nokogiri::XSLT::Stylesheettransform leaks a small heap allocation when passed a Ruby string parameter containing a null byte. For applications that pass attacker-controlled input through XSLT.transform parameters, this may be a vector for a denial of service attack against...

Nokogiri CSS selector tokenizer has regular expression backtracking

Summary Nokogiri's CSS selector tokenizer contains regular expressions whose construction may result in exponential regex backtracking on adversarial selectors. Three ReDoS vectors are addressed in this release: 1. String-literal tokenization on certain unterminated quoted-string input. 2...

GHSA-C4RQ-3M3G-8WGX Nokogiri CSS selector tokenizer has regular expression backtracking

Summary Nokogiri's CSS selector tokenizer contains regular expressions whose construction may result in exponential regex backtracking on adversarial selectors. Three ReDoS vectors are addressed in this release: 1. String-literal tokenization on certain unterminated quoted-string input. 2...

PT-2026-38487

Summary Nokogiri's CSS selector tokenizer contains regular expressions whose construction may result in exponential regex backtracking on adversarial selectors. Three ReDoS vectors are addressed in this release: 1. String-literal tokenization on certain unterminated quoted-string input. 2...

PT-2026-38489

Summary Nokogiri's Nokogiri::XSLT::Stylesheettransform leaks a small heap allocation when passed a Ruby string parameter containing a null byte. For applications that pass attacker-controlled input through XSLT.transform parameters, this may be a vector for a denial of service attack against...

Regular Expression Denial of Service (ReDoS)

Overview nokogiri is a gem for parsing HTML, XML, SAX, and Reader. Affected versions of this package are vulnerable to Regular Expression Denial of Service ReDoS in the CSS selector tokenizer in css/tokenizer.rb. An attacker can cause excessive resource consumption by supplying malicious input to...

Missing Release of Memory after Effective Lifetime

Overview nokogiri is a gem for parsing HTML, XML, SAX, and Reader. Affected versions of this package are vulnerable to Missing Release of Memory after Effective Lifetime in the XSLT::Stylesheettransform function, when a string parameter containing a null byte is processed, preventing...

ruby4.0-rubygem-nokogiri-1.18.9-1.4 on GA media (moderate)

ruby4.0-rubygem-nokogiri-1.18.9-1.4 on GA media Announcement ID: openSUSE-SU-2026:10356-1 Rating: moderate Cross-References: CVE-2013-2877 CVE-2014-0191 CVE-2015-1819 CVE-2015-5312 CVE-2015-7497 CVE-2015-7498 CVE-2015-7499 CVE-2015-7500 CVE-2015-7941 CVE-2015-7942 CVE-2015-7995 CVE-2015-8035...

OPENSUSE-SU-2026:10356-1 ruby4.0-rubygem-nokogiri-1.18.9-1.4 on GA media

These are all security issues fixed in the ruby4.0-rubygem-nokogiri-1.18.9-1.4 package on the GA media of openSUSE Tumbleweed...

Critical Photon OS Security Update - PHSA-2026-4.0-0969

Updates of 'rubygem-nokogiri', 'linux' packages of Photon OS have been released...