GitHub Advisoryadvisory · Maven

GHSA-4gv3-mc9p-5wqc Keycloak: Unauthenticated account takeover via reset-credentials flow bypass

CRITICAL Published 2026-08-18 Modified 2026-08-28 Official page ↗
Aliases
CVE-2026-18963
Ecosystem
Maven
Packages
org.keycloak:keycloak-services
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-640
Reviewed
2026-08-28

Affected packages

• Maven org.keycloak:keycloak-services: >= 26.0.0, < 26.4.15 → fixed in 26.4.15 • Maven org.keycloak:keycloak-services: >= 26.5.0, < 26.6.6 → fixed in 26.6.6 • Maven org.keycloak:keycloak-services: >= 26.7.0, < 26.7.2 → fixed in 26.7.2

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.

Related

Alias · CVE (1)

  • 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… vulnerability

Weakness · CWE (1)

  • CWE-640 Weak Password Recovery Mechanism for Forgotten Password weakness

References