{"id":"CVE-2025-3910","title":"A flaw was found in Keycloak","summary":"A flaw was found in Keycloak. The org.keycloak.authorization package may be vulnerable to circumventing required actions, allowing users to circumvent requirements such as setting up two-factor authentication.","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cwe":["CWE-287"],"vendor":"redhat","product":"build_of_keycloak","affected":["build_of_keycloak >= 26.0, < 26.0.11"],"patched":["build_of_keycloak 26.0.11"],"published":"2025-04-29","updated":"2026-09-21","sourceUpdated":"2026-09-21T06:17:00.497","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-3910","references":[{"url":"https://access.redhat.com/errata/RHSA-2025:4335","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2025:4336","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-3910","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2361923","label":"secalert@redhat.com"},{"url":"https://github.com/keycloak/keycloak/issues/39349","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-3910.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-3910"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3910"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2025-04-30T15:52:31.582697Z"},"epss":0.00424,"epssPercentile":0.36234,"ingestedAt":"2026-09-21T06:32:37.144Z","slug":"CVE-2025-3910","body":"## Overview\n\nA flaw was found in Keycloak. The org.keycloak.authorization package may be vulnerable to circumventing required actions, allowing users to circumvent requirements such as setting up two-factor authentication.\n\n## Affected\n\n- `build_of_keycloak >= 26.0, < 26.0.11`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `build_of_keycloak 26.0.11`\n\n## Vendor advisories\n\n- **RHSA-2025:4335** · Red Hat · fixed in: Red Hat build of Keycloak 26.0 · released 2025-04-29 · [advisory](https://access.redhat.com/errata/RHSA-2025:4335)\n- **RHSA-2025:4336** · Red Hat · fixed in: Red Hat Build of Keycloak · released 2025-04-29 · [advisory](https://access.redhat.com/errata/RHSA-2025:4336)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}