Keycloak: Unauthenticated account takeover via reset-credentials flow bypass
Published Aug 18, 2026 · Updated Oct 24, 2026 · Also known as BIT-keycloak-2026-18963, GHSA-4gv3-mc9p-5wqc
Original summary
Normalized public record · Updated Oct 24, 2026
Keycloak: Unauthenticated account takeover via reset-credentials flow bypass
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- MEDIUM
- Confidence
- 20%
- Aliases
- BIT-keycloak-2026-18963, GHSA-4gv3-mc9p-5wqc
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- RHSA-2026:56519 ↗
- RHSA-2026:56520 ↗
- RHSA-2026:56523 ↗
- RHSA-2026:56524 ↗
- access.redhat.com ↗
- RHBZ#2511595 ↗
- cert-portal.siemens.com ↗
Record history
Published Aug 18, 2026 · Last refreshed Oct 24, 2026