CVE-2026-79770: Nokogiri before 1.19.3 ReDoS via CSS selector tokenizer
sparklemotion · nokogiri
Fixed in 1.19.3 · Affected: sparklemotion nokogiri before 1.19.3 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 42% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- sparklemotion · nokogiribefore 1.19.3
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- sparklemotion
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-79770 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.