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CVE-2026-2733

Org.keycloak/keycloak-services: keycloak: missing check on disabled client for docker registry protocol

Published: Feb 19, 2026Updated: Mar 5, 2026 Sources: CVE List NVD GHSACWE-285
NVD MITRE
3.8CVSSLOW
EPSS Score
0.3%
Top 75.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-285

Affected Products

Red Hat build of Keycloak 26.4Red Hat
On-premWeb App
Web & CMS Plugins
Red Hat build of Keycloak 26.4.10Red Hat
On-prem
Operating Systems / linux-distro
Red Hat Build of KeycloakRed HatWeb & CMS Plugins
Red Hat JBoss Enterprise Application Platform 8Red Hat
On-premWeb App
Enterprise Software / itsm-monitoring
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat
On-premOS
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat
and 2 more affected products View all →

Exploitability

Workaround Available

References

https://access.redhat.com/errata/RHSA-2026:3947
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3948
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-2733
access.redhat.com
and 5 more references View all →

Timeline

Published
Feb 19, 2026
Last Updated
Mar 5, 2026

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