{"schemaVersion":3,"id":"CVE-2026-15945","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"A flaw was found in the group search functionality of the Keycloak server's administrative API. When Fine-Grained Admin Permissions (FGAP) v2 is enabled, a delegated administrator can bypass access restrictions to view parent groups they are not authorized to see. By searching for a child group they have permission to view, the system incorrectly returns the full details of the parent group in the response, leading to the disclosure of sensitive group attributes and configuration.","dates":{"published":"2026-07-16T17:36:24.856Z","modified":"2026-09-16T18:34:02.851Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":4.3,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":4.3,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":2.7,"severity":"low","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00348,"percentile":0.27017,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.036000000000000004,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00312},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00259,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00259,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00259,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00348,"percentile":0.27017}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00312,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00348,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00348,"percentile":0.27017}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key","description":"The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/639.html"}],"affected":[{"vendor":"redhat","product":"build_of_keycloak","name":"build of keycloak","label":"build_of_keycloak","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/redhat/build_of_keycloak"},{"vendor":"redhat","product":"data_grid","name":"data grid","label":"data_grid","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"8.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"8.0","eol":null,"hubHref":"/vendor/redhat/data_grid"},{"vendor":"redhat","product":"jboss_enterprise_application_platform_expansion_pack","name":"jboss enterprise application platform expansion pack","label":"jboss_enterprise_application_platform_expansion_pack","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"na","noFixRecorded":false,"fixedIn":null}],"versionsText":"na","eol":null,"hubHref":"/vendor/redhat/jboss_enterprise_application_platform_expansion_pack"},{"vendor":"redhat","product":"single_sign-on","name":"single sign-on","label":"single_sign-on","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"7.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"7.0","eol":null,"hubHref":"/vendor/redhat/single_sign-on"}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:68277","label":"access.redhat.com/errata/RHSA-2026:68277","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:68278","label":"access.redhat.com/errata/RHSA-2026:68278","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-15945","label":"access.redhat.com/security/cve/CVE-2026-15945","hostname":"access.redhat.com","tags":["VDB Entry","X Refsource REDHAT","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2501302","label":"bugzilla.redhat.com/show_bug.cgi?id=2501302","hostname":"bugzilla.redhat.com","tags":["Issue Tracking","X Refsource REDHAT","Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-16T17:36:24.856Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-09-16T18:34:02.851Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":17,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T18:25:43.502Z","stale":false,"partial":false}}