{"id":"CVE-2026-3288","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-3288","generatedAt":"2026-10-28T05:26:18.865Z","title":"A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` Ingress annotation can be used to inject configuration into nginx.","description":"A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/rewrite-target` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)","published":"2026-03-09T21:16:21.000Z","lastModified":"2026-06-17T10:43:21.000Z","status":"Analyzed","sourceIdentifier":"jordan@liggitt.net","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-20"],"affected":["kubernetes/ingress-nginx"],"epss":{"score":0.06549,"percentile":0.93772,"date":"2026-10-27","history":[{"date":"2026-09-24","score":0.00713,"percentile":0.51593},{"date":"2026-10-25","score":0.0641,"percentile":0.93639}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (6.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-10-25T00:00:00.000Z","detail":{"to":0.0641,"from":0.00741,"percentile":0.93639},"summary":"EPSS moved from 0.7% to 6.4% probability of exploitation in the next thirty days."}],"references":[{"url":"https://github.com/kubernetes/kubernetes/issues/137560","tags":["Issue Tracking","Third Party Advisory"],"source":"jordan@liggitt.net"},{"url":"http://www.openwall.com/lists/oss-security/2026/03/09/8","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/bvabhishek/CVE-2026-3288-lab","tags":["Mitigation","Third Party Advisory"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-3288","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}