{"action":"Upgrade github.com/cert-manager/cert-manager to 1.18.5 or later.","affected":[{"fixed":"1.18.5","introduced":"1.18.0"},{"fixed":"1.19.3","introduced":"1.19.0"}],"component":"github.com/cert-manager/cert-manager","cve_ids":["CVE-2026-25518"],"ecosystem":"Go","epss":0.00372,"exploited":false,"fixed_versions":["1.18.5","1.19.3"],"ghsa_id":"GHSA-gx3x-vq4p-mhhv","id":"tcs_01M5KFBK60ZWCRVNH19J5EJ80Y","modified_at":"2026-09-10T03:50:35.167059566Z","published_at":"2026-02-02T22:11:06Z","references":["https://osv.dev/vulnerability/GHSA-gx3x-vq4p-mhhv","https://github.com/cert-manager/cert-manager/security/advisories/GHSA-gx3x-vq4p-mhhv","https://nvd.nist.gov/vuln/detail/CVE-2026-25518","https://github.com/cert-manager/cert-manager/pull/8467","https://github.com/cert-manager/cert-manager/pull/8468","https://github.com/cert-manager/cert-manager/pull/8469","https://github.com/cert-manager/cert-manager/commit/409fc24e539711a07aae45ed45abbe03dfdad2cc","https://github.com/cert-manager/cert-manager/commit/9a73a0b3853035827edd37ac463e4803ba10327d","https://github.com/cert-manager/cert-manager/commit/d4faed26ae12115cceb807cdc12507ebc28980e2","https://github.com/cert-manager/cert-manager","https://pkg.go.dev/vuln/GO-2026-4399"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-gx3x-vq4p-mhhv","url":"https://osv.dev/vulnerability/GHSA-gx3x-vq4p-mhhv"}],"summary":"cert-manager-controller DoS via Specially Crafted DNS Response"}