Duplicate Advisory: Nokogiri CSS selector tokenizer has regular expression backtracking
GHSA-5jhf-fpp7-v2pv
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Description
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-c4rq-3m3g-8wgx. This link is maintained to preserve external references.
Original Description
Nokogiri versions before 1.19.3 contain regular expression denial of service vulnerabilities in the CSS selector tokenizer affecting string-literal and identifier tokenization. Attackers can inject adversarial CSS selectors into methods like Node#css, Node#at_css, and Searchable#search to cause exponential regex backtracking and denial of service.
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