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CRITICAL

CVE-2026-18963

CVSS v3

9.1

CRITICAL

EPSS Score

3.2 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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.

Technical details

Published
2026-08-18
Last Modified
2026-08-20

Frequently asked questions

What is CVE-2026-18963?

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.

Is CVE-2026-18963 actively exploited?

Active exploitation of CVE-2026-18963 has not been confirmed. Its EPSS score was 3.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-18963?

CVE-2026-18963 has a CVSS v3 base score of 9.1 (CRITICAL severity).

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