{"id":"CVE-2026-96446","title":"A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak","summary":"A flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is alre…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-862"],"vendor":"Red Hat","product":"keycloak-services","affected":["keycloak-services (all versions)","rhbk/keycloak-rhel9 (all versions)","keycloak-services"],"published":"2026-09-23","updated":"2026-09-26","sourceUpdated":"2026-09-26T23:16:40.543","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-96446","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-96446","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2539284","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-96446.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-96446"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-96446"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-26T22:45:14.542570Z"},"epss":0.00272,"epssPercentile":0.19471,"ingestedAt":"2026-09-23T11:22:32.917Z","slug":"CVE-2026-96446","body":"## Overview\n\nA flaw was found in the Pushed Authorization Request PAR implementation of Keycloak. The issue occurs when the silent authentication path prompt=none is used, which allows the authorization process to skip certain steps if a user is already logged in. Due to this bypass, the security rule that ensures a pushed request URI is used only once is not enforced. An attacker could potentially reuse a request URI to obtain multiple authorization codes for a user who is already signed in, violating security standards like FAPI-2.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Build of Keycloak · no fix planned: Red Hat Build of Keycloak · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-96446.json)","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}