{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9792","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","state":"PUBLISHED","assignerShortName":"redhat","dateReserved":"2026-05-28T03:09:25.012Z","datePublished":"2026-05-28T03:44:18.671Z","dateUpdated":"2026-06-10T21:21:59.570Z"},"containers":{"cna":{"title":"Keycloak: keycloak: security restriction bypass allows unauthorized ropc token acquisition","metrics":[{"other":{"content":{"value":"Moderate","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"format":"CVSS"}],"descriptions":[{"lang":"en","value":"A flaw was found in Keycloak's Client Policies, specifically within the `org.keycloak.protocol.oidc` component. When certain condition providers (client-type, client-roles, client-attributes, client-scopes) are used to enforce security restrictions, the `reject-ropc-grant` executor is silently bypassed. This allows an unauthenticated remote attacker to obtain tokens via a Resource Owner Password Credentials (ROPC) grant, even when a policy is explicitly configured to block it. This bypass can lead to unauthorized access and information disclosure."}],"affected":[{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.6","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhbk/keycloak-operator-bundle","defaultStatus":"affected","versions":[{"version":"26.6.3-3","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.6","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhbk/keycloak-rhel9","defaultStatus":"affected","versions":[{"version":"26.6-6","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.6","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"rhbk/keycloak-rhel9-operator","defaultStatus":"affected","versions":[{"version":"26.6-6","lessThan":"*","versionType":"rpm","status":"unaffected"}],"cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"]},{"vendor":"Red Hat","product":"Red Hat build of Keycloak 26.6.3","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","defaultStatus":"unaffected","packageName":"rhbk/keycloak-rhel9","cpes":["cpe:/a:redhat:build_keycloak:26.6::el9"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:25097","name":"RHSA-2026:25097","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:25098","name":"RHSA-2026:25098","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-9792","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2482459","name":"RHBZ#2482459","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-05-28T03:10:21.828Z","problemTypes":[{"descriptions":[{"cweId":"CWE-280","description":"Improper Handling of Insufficient Permissions or Privileges","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-280: Improper Handling of Insufficient Permissions or Privileges","workarounds":[{"lang":"en","value":"To mitigate this issue, Keycloak administrators should review and adjust client policies designed to reject Resource Owner Password Credentials (ROPC) grants. Avoid using the `client-type`, `client-roles`, `client-attributes`, or `client-scopes` condition providers in conjunction with the `reject-ropc-grant` executor. Instead, configure policies to use the `grant-type` condition provider for ROPC rejection. A restart or reload of the Keycloak service may be required for these policy changes to take full effect."}],"timeline":[{"lang":"en","time":"2026-05-28T03:09:09.710Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-05-28T03:10:21.828Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Evan Hendra (Independent Security Researcher) for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-06-10T21:21:59.570Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-29T18:32:16.047044Z","id":"CVE-2026-9792","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-29T18:32:37.326Z"}}]}}