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Nokogiri CSS selector tokenizer has regular expression backtracking
Nokogiri CSS selector tokenizer has regular expression backtracking
Affected packages
- nokogiri— before 1.19.3
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-c4rq-3m3g-8wgx
- https://nvd.nist.gov/vuln/detail/CVE-2026-79770
- https://github.com/sparklemotion/nokogiri
- https://www.vulncheck.com/advisories/nokogiri-before-redos-via-css-selector-tokenizer
Structured record: https://osv.dev/vulnerability/GHSA-c4rq-3m3g-8wgx
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