CVE-2026-18963CWE-640

CVE-2026-18963

Critical · published August 18, 2026

CVSS v3.1
9.1
EPSS
6%
Percentile
93.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.1 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.06407 · 93.7th percentile
Weakness
CWE-640 · Weak Password Recovery Mechanism for Forgotten Password
Published
2026-08-18T21:16Z
References (7)
EPSS history
Timeline
  • 18 AUG 17:05Z
    Keycloak-services: keycloak-services: unauthenticated account takeover via reset-credentials flow bypass
    cvelistv5