CVE-2026-18201

What it is

Keycloak provides a way to manage identity providers and organizations through its administrative API. A flaw was discovered where an administrator with permission to manage identity providers could link a new provider to an organization without having the required permissions to manage that organization. This could allow an unauthorized administrator to influence how users log into specific organizations.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data tampering.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-07-29 10:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-09-16 19:17 UTC Last updatedMost recent change to the record

Details

Published

2026-07-29 10:16 UTC

Last modified

2026-09-16 19:17 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-862 · Missing authorization

Record status

Modified

Affected

• Redhat Build Of Keycloak

Attack profile CVSS 3.1 · 5.5

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

None