Vulnerability Details CVE-2022-23476
Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.9%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2022-23476
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cpe:2.3:a:nokogiri:nokogiri:1.13.8
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cpe:2.3:a:nokogiri:nokogiri:1.13.9