CVE-2021-41098

Improper Restriction of XML External Entity Reference in gem/nokogiri

Identifier

CVE-2021-41098

Package Slug

gem/nokogiri

Vulnerability

Improper Restriction of XML External Entity Reference

Description

Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri v1.12.4, on JRuby only, the SAX parser resolves external entities by default. Users of Nokogiri on JRuby who parse untrusted documents using any of these classes are affected: Nokogiri::XML::SAX::Parse, Nokogiri::HTML4::SAX::Parser or its alias Nokogiri::HTML::SAX::Parser, Nokogiri::XML::SAX::PushParser, and Nokogiri::HTML4::SAX::PushParser or its alias Nokogiri::HTML::SAX::PushParser. JRuby users should upgrade to Nokogiri.

Affected Versions

All versions before 1.12.5

Solution

Upgrade to version 1.12.5 or above.

Last Modified

2021-10-09

source