{"id":"CVE-2016-8218","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-8218","generatedAt":"2026-10-28T21:16:10.986Z","title":"Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users to the routing API, aka an \"Unauthenticated JWT signing algorithm in routing\" issue.","description":"An issue was discovered in Cloud Foundry Foundation routing-release versions prior to 0.142.0 and cf-release versions 203 to 231. Incomplete validation logic in JSON Web Token (JWT) libraries can allow unprivileged attackers to impersonate other users to the routing API, aka an \"Unauthenticated JWT signing algorithm in routing\" issue.","published":"2017-06-13T06:29:00.000Z","lastModified":"2026-06-17T00:54:02.000Z","status":"Modified","sourceIdentifier":"security_alert@emc.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-20"],"affected":["cloudfoundry/cf-release","cloudfoundry/routing-release"],"epss":{"score":0.01297,"percentile":0.70229,"date":"2026-10-27","history":[]},"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 (1.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.cloudfoundry.org/cve-2016-8218/","tags":["Patch","Vendor Advisory"],"source":"security_alert@emc.com"},{"url":"https://www.cloudfoundry.org/cve-2016-8218/","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-8218","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."}