{"action":"Upgrade dnsmasq to 2.91-1+deb13u1 or later.","affected":[{"fixed":"2.91-1+deb13u1","introduced":"0"}],"component":"dnsmasq","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["2.91-1+deb13u1"],"id":"tcs_01M5NSMTAPSVB9Z86555JRBPDE","modified_at":"2026-10-01T03:03:24.541662421Z","published_at":"2026-05-11T18:16:41.273Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-4890","https://security-tracker.debian.org/tracker/CVE-2026-4890"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-4890#Debian:13/dnsmasq","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-4890"}],"summary":"A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet."}