---
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
tags:
  - nvd
  - cve.org
  - exploit-available
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-08-20T13:53:38.227092Z'
epss: 0.03177
epssPercentile: 0.8753
exploits:
  github: 15
  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: '2026-09-26T09:05:39.532Z'
exploitAvailable: true
ingestedAt: '2026-09-08T15:33:26.954Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.