{"id":"CVE-2018-15754","aliases":["EUVD-2018-7620","GHSA-6c8m-9r93-f9rp"],"status":"published","title":"UAA can issue tokens across identity providers if users with matching usernames exist","description":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.","severity":{"version":"3.0","score":4.2,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.01782,"percentile":0.78404,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2018-12-13T22:00:00Z","modified":"2026-10-24T10:30:24Z","products":[{"vendor":"cloud foundry","product":"uaa release"},{"vendor":"pivotal_software","product":"cloud_foundry_uaa-release"}],"references":[{"url":"http://www.securityfocus.com/bid/106240","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://www.cloudfoundry.org/blog/cve-2018-15754/","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory","advisory"]},{"url":"https://www.cloudfoundry.org/blog/cve-2018-15754","tags":["x_refsource_CONFIRM","x_transferred","Mitigation","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15754"},{"url":"https://github.com/advisories/GHSA-6c8m-9r93-f9rp"}],"sources":{"cve":[{"id":"CVE-2018-15754","title":"UAA can issue tokens across identity providers if users with matching usernames exist","description":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.","status":"published","published":"2018-12-13T22:00:00Z","modified":"2024-09-16T17:24:01.117Z","cvss":[{"version":"3.0","score":4.2,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:03.288698Z"}],"euvd":[{"id":"EUVD-2018-7620","description":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.","status":"published","published":"2018-12-13T22:00:00Z","modified":"2024-09-16T17:24:01Z","cvss":[{"version":"3.0","score":4.2,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:42.486621Z"}],"ghsa":[{"id":"GHSA-6c8m-9r93-f9rp","title":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In...","description":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.","status":"published","published":"2022-05-13T01:34:09Z","modified":"2023-02-01T05:08:26Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:50:45.608979Z"}],"nvd":[{"id":"CVE-2018-15754","description":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.","status":"published","published":"2018-12-13T22:29:00.28Z","modified":"2026-06-17T01:43:03.483Z","cvss":[{"version":"3.0","score":4.2,"vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:04:50.99633Z"}],"osv":[{"id":"CVE-2018-15754","description":"Cloud Foundry UAA, versions 60 prior to 66.0, contain an authorization logic error. In environments with multiple identity providers that contain accounts across identity providers with the same username, a remote authenticated user with access to one of these accounts may be able to obtain a token for an account of the same username in the other identity provider.","status":"published","published":"2018-12-13T22:29:00.28Z","modified":"2026-10-24T10:30:24.065139169Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:08.242347Z"}]}}