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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Public exploits 19
- Keycloak 26.7.2 - Unauthenticated Account Takeover (webapps · multiple) Exploit-DB · 2026-10-21
- 0xlyvio/CVE-2026-18963-keycloak PoC on GitHub
- BlackHatExploitation/Exploit-For-CVE-2026-18963 PoC on GitHub
- EQSTLab/CVE-2026-18963 PoC on GitHub
- M4xSec/My-Exploits PoC on GitHub
- Red-Darkin/CVE-2026-18963-keycloak PoC on GitHub
- Snizi/CVE-2026-18963-Exploit PoC on GitHub
- SonOfABot/-CVE-2026-18963-POC PoC on GitHub
- T0w0T/POC-CVE-2026-18963 PoC on GitHub
- alt3kx/CVE-2026-18963 PoC on GitHub
- debugactiveprocess/CVE-2026-18963 PoC on GitHub
- gman0x00/keycloak-CVE-2026-18963 PoC on GitHub
- hardeep-sudo/Keycloak-CVE-2026-18963-Exploit PoC on GitHub
- ivanesk315/CVE-2026-18963 PoC on GitHub
- kyos-public/keycloak-cve-2026-18963-hunt PoC on GitHub
- minh3102011/CVE-2026-18963_analyst PoC on GitHub
- orevim/CVE-2026-18963-PoC PoC on GitHub
- prot0tw/Keycloak_CVE-2026-18963_PoC PoC on GitHub
- ynsmroztas/KeySniper PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Change history 2
- StatusAwaiting Analysis → PublishedNVD modified 2026-10-23 16:38
- First seenCVSS 9.1NVD modified 2026-10-23 17:17
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 7
- https://access.redhat.com/errata/RHSA-2026:56519
- https://access.redhat.com/errata/RHSA-2026:56520
- https://access.redhat.com/errata/RHSA-2026:56523
- https://access.redhat.com/errata/RHSA-2026:56524
- https://access.redhat.com/security/cve/CVE-2026-18963
- https://bugzilla.redhat.com/show_bug.cgi?id=2511595
- https://cert-portal.siemens.com/productcert/html/ssa-503852.html