VulnerabilityAwaiting Analysis

CVE-2026-18963

The issue allows an unauthenticated attacker to force the password reset process for any user without needing to click the required email verification link.

EXPLOITCRITICAL 9.1EPSS 4.68%

Does this matter?

A public exploit is published in Exploit-DB and the impact is critical, while EPSS rates exploitation at 4.7%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.

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.

CVSS 3.1: 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS: 4.68% probability · 92th percentile
Public exploits: 1 in Exploit-DB · first 21 October 2026
CISA KEV: Not listed
Weakness: CWE-640
Source: secalert@redhat.com

EPSS trend

EPSS moved from 6.4% on 22 October 2026 to 4.7% on 29 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-ID	Title	Type	Published	Verified
EDB-52699 source ↗	Keycloak 26.7.2 - Unauthenticated Account Takeovermultiple · Abel Maldonado	webapps	21 October 2026	no

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.