{"id":"CVE-2017-8031","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-8031","generatedAt":"2026-10-28T21:57:46.853Z","title":"In some cases, the UAA allows an authenticated user for a particular client to revoke client tokens for other users on the same client.","description":"An issue was discovered in Cloud Foundry Foundation cf-release (all versions prior to v279) and UAA (30.x versions prior to 30.6, 45.x versions prior to 45.4, 52.x versions prior to 52.1). In some cases, the UAA allows an authenticated user for a particular client to revoke client tokens for other users on the same client. This occurs only if the client is using opaque tokens or JWT tokens validated using the check_token endpoint. A malicious actor could cause denial of service.","published":"2017-11-27T10:29:01.000Z","lastModified":"2026-06-17T01:25:40.000Z","status":"Modified","sourceIdentifier":"security_alert@emc.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["cloudfoundry/cf-release","cloudfoundry/uaa-release"],"epss":{"score":0.01086,"percentile":0.65093,"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":"low","text":"Lower severity and a low EPSS score (1.09%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/101967","tags":["Third Party Advisory","VDB Entry"],"source":"security_alert@emc.com"},{"url":"https://www.cloudfoundry.org/cve-2017-8031/","tags":["Issue Tracking","Third Party Advisory"],"source":"security_alert@emc.com"},{"url":"http://www.securityfocus.com/bid/101967","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cloudfoundry.org/cve-2017-8031/","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-8031","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."}