Ruby resolv

3 published vulnerabilities name this product.

As the CNAs write it in their CVE records (vendor and product); the versions are theirs.

CVEVulnerable versionsTitleSeverityPublishedEPSSExploitation
CVE-2026-80213< 0.3.2 ; 0.4.0 – < 0.7.2An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::MessageEncoder wrote a DNS label's length into a single octet MEDIUM 4.00.3 %
CVE-2026-80212< 0.3.2 ; 0.4.0 – < 0.7.2An issue was discovered in the resolv gem before 0.7.2 for Ruby. Resolv::DNS::Resource.get_class, Resolv::DNS::Resource::Generic.create, andHIGH 7.50.4 %
CVE-2025-242940.2 – 0.2.2 ; 0.3.0 ; 0.6 – 0.6.1The attack vector is a potential Denial of Service (DoS). The vulnerability is caused by an insufficient check on the length of a decompressHIGH 7.50.7 %