{"id":"CVE-2026-18963","title":"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","summary":"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 passwo…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-640"],"vendor":"Red Hat","product":"rhbk/keycloak-operator-bundle","affected":["rhbk/keycloak-operator-bundle (all versions)","rhbk/keycloak-rhel9 (all versions)","rhbk/keycloak-rhel9-operator (all versions)","keycloak-services","rhbk-openshift-rhel9/rhbk-openshift-rhel9","rhbk/keycloak-operator-bundle (all versions)","rhbk/keycloak-rhel9 (all versions)","rhbk/keycloak-rhel9-operator (all versions)","keycloak-services","rhbk-keycloak-rhel9/rhbk-keycloak-rhel9","rhbk-openshift-rhel9/rhbk-openshift-rhel9","keycloak-services","keycloak-services"],"published":"2026-08-18","updated":"2026-09-08","sourceUpdated":"2026-09-08T09:17:43.063","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18963","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:56519","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:56520","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:56523","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:56524","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-18963","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511595","label":"secalert@redhat.com"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-503852.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18963.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18963"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18963"}],"tags":["nvd","cve.org","exploit-available","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"total","timestamp":"2026-08-20T13:53:38.227092Z"},"epss":0.04682,"epssPercentile":0.91732,"exploits":{"exploitdb":true,"github":18,"githubRepos":["https://github.com/ynsmroztas/KeySniper","https://github.com/Snizi/CVE-2026-18963-Exploit","https://github.com/Red-Darkin/CVE-2026-18963-keycloak"],"nuclei":["CVE-2026-18963"],"checkedAt":"2026-10-27T17:01:08.805Z"},"exploitAvailable":true,"ingestedAt":"2026-09-08T15:33:26.954Z","patched":["build_of_keycloak 26.4","build_of_keycloak 26.6","build_of_keycloak 26.4.15","build_of_keycloak 26.6.6"],"slug":"CVE-2026-18963","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:56519** · Red Hat · fixed in: Red Hat build of Keycloak 26.4 · released 2026-08-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:56519)\n- **RHSA-2026:56524** · Red Hat · fixed in: Red Hat build of Keycloak 26.6 · released 2026-08-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:56524)\n- **RHSA-2026:56520** · Red Hat · fixed in: Red Hat build of Keycloak 26.4.15 · released 2026-08-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:56520)\n- **RHSA-2026:56523** · Red Hat · fixed in: Red Hat build of Keycloak 26.6.6 · released 2026-08-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:56523)\n- **Red Hat VEX** · Critical · affected: Red Hat Single Sign-On 7 · no fix planned: Red Hat Single Sign-On 7 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18963.json)","depth":"abyssal","depthScore":63,"depthScoreParts":{"impact":50.1,"likelihood":0.9,"exploitation":12,"ransomware":0},"changes":[]}