{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-18963","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-08-05T15:00:40.360Z","datePublished":"2026-08-18T17:05:07.478Z","dateUpdated":"2026-08-20T22:25:58.686Z"},"containers":{"cna":{"title":"Keycloak-services: keycloak-services: unauthenticated account takeover via reset-credentials flow bypass","metrics":[{"other":{"content":{"value":"Critical","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.1,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"A flaw was found in the reset-credentials flow of the keycloak-services component, which is the core engine for identity and access management in Red Hat Build of Keycloak. The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link. This can result in the attacker gaining full control over target user accounts by directly setting new credentials."}],"affected":[{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.4","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhbk/keycloak-operator-bundle","defaultStatus":"affected","versions":[{"version":"26.4.15-1","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.4","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhbk/keycloak-rhel9","defaultStatus":"affected","versions":[{"version":"26.4-23","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.4","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhbk/keycloak-rhel9-operator","defaultStatus":"affected","versions":[{"version":"26.4-23","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:build_keycloak:26.4::el9"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.4.15","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","defaultStatus":"unaffected","packageName":"keycloak-services","cpes":["cpe:/a:redhat:build_keycloak:26.4"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.4.15","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","defaultStatus":"unaffected","packageName":"rhbk-openshift-rhel9/rhbk-openshift-rhel9","cpes":["cpe:/a:redhat:build_keycloak:26.4"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 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Hat","product":"Red Hat build of Keycloak 26.6.6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","defaultStatus":"unaffected","packageName":"keycloak-services","cpes":["cpe:/a:redhat:build_keycloak:26.6"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.6.6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","defaultStatus":"unaffected","packageName":"rhbk-keycloak-rhel9/rhbk-keycloak-rhel9","cpes":["cpe:/a:redhat:build_keycloak:26.6"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.6.6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","defaultStatus":"unaffected","packageName":"rhbk-openshift-rhel9/rhbk-openshift-rhel9","cpes":["cpe:/a:redhat:build_keycloak:26.6"]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform Expansion 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7","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"keycloak-services","defaultStatus":"unaffected","cpes":["cpe:/a:redhat:red_hat_single_sign_on:7"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:56519","name":"RHSA-2026:56519","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:56520","name":"RHSA-2026:56520","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:56523","name":"RHSA-2026:56523","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:56524","name":"RHSA-2026:56524","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-18963","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511595","name":"RHBZ#2511595","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-08-17T00:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-640","description":"Weak Password Recovery Mechanism for Forgotten Password","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-640: Weak Password Recovery Mechanism for Forgotten Password","workarounds":[{"lang":"en","value":"If an immediate upgrade is not possible, disabling the \"Forgot password\" functionality across all realms can be used as a temporary mitigation.\n\nIn the RHBK administration console, navigate to:\n\nRealm settings → Login → Forgot password → Off\n\nApply this setting to all realms.\n\nUpgrade to a fixed version as soon as possible."}],"timeline":[{"lang":"en","time":"2026-07-31T15:46:15.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-17T00:00:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank James Paremain for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-08-20T22:25:58.686Z"},"x_generator":{"engine":"cvelib 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