{"id":"CVE-2026-97175","aliases":["EUVD-2026-117611","GHSA-9gcf-99g8-425c"],"status":"published","title":"Keycloak-services: keycloak-services: unverified idp email auto-linking enables account takeover","description":"A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00355,"percentile":0.29452,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2026-11-05T17:16:04Z","modified":"2026-11-06T19:44:45Z","products":[{"vendor":"red hat","product":"red hat build of keycloak 26.4.17"},{"vendor":"red hat","product":"red hat build of keycloak 26.6.8"},{"vendor":"red hat","product":"red hat single sign-on 7"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:95759","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:95760","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:95761","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:95762","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-97175","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97175"},{"url":"https://github.com/advisories/GHSA-9gcf-99g8-425c"}],"sources":{"cve":[{"id":"CVE-2026-97175","title":"Keycloak-services: keycloak-services: unverified idp email auto-linking enables account takeover","description":"A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.","status":"published","published":"2026-11-05T17:16:04.146Z","modified":"2026-11-09T22:25:48.617Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-287"],"updated_at":"2026-11-09T23:35:22.059445Z"}],"euvd":[{"id":"EUVD-2026-117611","description":"A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.","status":"published","published":"2026-11-05T17:16:04Z","modified":"2026-11-09T22:25:48Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-06T21:07:00.111123Z"}],"ghsa":[{"id":"GHSA-9gcf-99g8-425c","title":"A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which...","description":"A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.","status":"published","published":"2026-11-05T18:33:17Z","modified":"2026-11-06T21:32:19Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-06T21:34:16.869182Z"}],"nvd":[{"id":"CVE-2026-97175","description":"A flaw was found in the idp-auto-link authenticator of the keycloak-services component, which handles user identity federation. The issue occurs when Keycloak automatically links an incoming identity from an external provider to an existing local account based on an email address without verifying if the provider has validated that email. This can allow an attacker to take over a victim's account by using a matching unverified email address at a brokered provider.","status":"published","published":"2026-11-05T18:17:11.67Z","modified":"2026-11-09T23:17:27.027Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-287"],"updated_at":"2026-11-06T22:02:16.829458Z"}]}}