CVE-2026-2733

What it is

A flaw was identified in the Docker v2 authentication endpoint of Keycloak, where tokens continue to be issued even after a Docker registry client has been administratively disabled. This means that turning the client “Enabled” setting to OFF does not fully prevent access. As a result, previously valid credentials can still be used to obtain authentication tokens. This weakens administrative controls and could allow unintended access to container registry resources.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. Limited direct impact.

Exploit odds

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

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2026-02-19 08:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 10:31 UTC Last updatedMost recent change to the record

Details

Published

2026-02-19 08:16 UTC

Last modified

2026-06-17 10:31 UTC

Exploit probability

0.4% · EPSS, next 30 days

Weakness

CWE-285

Record status

Deferred

Attack profile CVSS 3.1 · 3.8

Attack vector

Network

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None