{"id":"CVE-2020-5409","details":"Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a user to click on a link using the OAuth redirect link with an untrusted website and gain access to that user's access token in Concourse. (This issue is similar to, but distinct from, CVE-2018-15798.)","aliases":["BIT-concourse-2020-5409"],"modified":"2026-07-08T20:29:10.283536Z","published":"2020-05-14T00:15:11.603Z","references":[{"type":"ADVISORY","url":"https://tanzu.vmware.com/security/cve-2020-5409"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/concourse/concourse","events":[{"introduced":"0"},{"fixed":"3162bc170c4471aa900f6c413dad373203d7f0b8"},{"introduced":"5ffc88a8d5c7c82a225ab11997ddfc1fde230e18"},{"fixed":"31c83d0a1b320c885f036fecc853effa31b864c5"},{"introduced":"f2859f7ef1d88aa328bbf31b3ddb632a533660bb"},{"fixed":"324c3af716013b13eb9780d108810d2816960139"}],"database_specific":{"cpe":"cpe:2.3:a:pivotal_software:concourse:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"5.2.8"},{"introduced":"5.3.0"},{"fixed":"5.5.10"},{"introduced":"5.6.0"},{"fixed":"5.8.1"}],"source":"CPE_RANGE"}}],"versions":["v5.5.9","v5.2.7","v5.5.8","v5.8.0","v5.5.7","v5.2.6","v5.2.5","v5.5.6","v5.5.5","v5.2.4","v5.5.4","v5.7.0","v5.5.3","v5.5.1","v5.6.0","v5.5.0","v5.2.3","v5.2.2","v5.2.1","v5.4.0","v5.3.0","v5.2.0-rc.24","v5.2.0","v5.1.0","v5.0.0","v5.0.0-rc.90","v4.2.2-rc.133","v4.2.1","v4.2.0","v4.1.0","v4.0.0","v3.14.1","v3.14.0","v3.13.0","v3.12.0","v3.11.0","v3.10.0","v3.9.2","v3.9.1","v3.9.0","v3.8.0","v3.7.0","v3.6.0","v3.5.0","v3.4.0","v3.3.2","v3.3.1","v3.3.0","v3.2.1","v3.2.0","v3.1.1","v3.1.0","v3.0.1","v3.0.0","v2.7.0","v2.6.0","v2.5.0","v2.3.1","v2.3.0","v2.2.0","v2.1.0","v2.0.0","v1.5.1","v1.3.1","v1.2.0","v1.1.0","v0.66.1","v0.66.0","v0.65.0","v0.64.1","v0.64.0","v0.62.1","v0.62.0","v0.61.0","v0.60.1","v0.60.0","v0.59.0","v0.58.0","v0.57.0","v0.56.0","v0.53.0","v0.55.0","v0.54.0","v0.43.0","v0.28.0","v0.7.0","v0.7.0-rc.37","v0.7.0-rc.36","v0.7.0-rc.35","v0.7.0-rc.34","v0.7.0-rc.33","v0.7.0-rc.32","v0.7.0-rc.31","v0.7.0-rc.30","v0.7.0-rc.29","v0.7.0-rc.27","v0.7.0-rc.26","v0.7.0-rc.25","v0.7.0-rc.24","v0.7.0-rc.23","v0.7.0-rc.22","v0.7.0-rc.21","v0.7.0-rc.20","v0.7.0-rc.19","v0.7.0-rc.18","v0.7.0-rc.17","v0.7.0-rc.16","v0.7.0-rc.15","v0.7.0-rc.14","v0.7.0-rc.13","v0.7.0-rc.11","v0.7.0-rc.10","v0.7.0-rc.9","v0.7.0-rc.8","v0.7.0-rc.7","v0.7.0-rc.6","v0.7.0-rc.5","v0.7.0-rc.4","v0.7.0-rc.3","v0.7.0-rc.2","v0.7.0-rc.1","v0.6.0","v0.6.0-rc.42","v0.6.0-rc.41","v0.6.0-rc.40","v0.6.0-rc.39","v0.6.0-rc.38","v0.6.0-rc.37","v0.6.0-rc.36","v0.6.0-rc.35","v0.6.0-rc.33","v0.6.0-rc.32","v0.6.0-rc.31","v0.6.0-rc.30","v0.6.0-rc.29","v0.6.0-rc.28","v0.6.0-rc.27","v0.6.0-rc.26","v0.6.0-rc.25","v0.6.0-rc.24","v0.6.0-rc.23","v0.6.0-rc.22","v0.6.0-rc.20","v0.6.0-rc.19","v0.6.0-rc.18","v0.6.0-rc.17","v0.6.0-rc.15","v0.6.0-rc.14","v0.6.0-rc.13","v0.6.0-rc.12","v0.6.0-rc.11","v0.6.0-rc.10","v0.6.0-rc.9","v0.6.0-rc.2","v0.6.0-rc.1","v0.5.0","v0.5.0-rc.20","v0.5.0-rc.18","v0.5.0-rc.17","v0.5.0-rc.16","v0.5.0-rc.15","v0.5.0-rc.9","v0.5.0-rc.8","v0.5.0-rc.7","v0.5.0-rc.6","v0.4.0","v0.5.0-rc.5","v0.5.0-rc.4","v0.5.0-rc.3","v0.5.0-rc.2","v0.5.0-rc.1","v0.4.0-rc.1","v0.3.0-rc.33","v0.3.0","v0.3.0-rc.32","v0.3.0-rc.31","v0.3.0-rc.25","v0.3.0-rc.24","v0.3.0-rc.23","v0.3.0-rc.20","v0.3.0-rc.8","v0.3.0-rc.7","v0.3.0-rc.6","v0.3.0-rc.5","v0.3.0-rc.4","v0.3.0-rc.3","v0.3.0-rc.2","v0.3.0-rc.1","v0.2.0","v0.2.0-rc.3","v0.2.0-rc.2","v0.2.0-rc.1","v0.1.0","v0.1.0-rc.7","v0.1.0-rc.6","v0.1.0-rc.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5409.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}