Docker
CVE-2026-2733
LOW
GHSA-fjf4-6f34-w64q
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Lifecycle Timeline
2Blast Radius
ecosystem impact- 45 maven packages depend on org.keycloak:keycloak-services (16 direct, 29 indirect)
Ecosystem-wide dependent count for version 26.5.3.
DescriptionCVE.org
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.
AnalysisAI
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. [CVSS 3.8 LOW]
Technical ContextAI
Classified as CWE-285 (Improper Authorization). 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.
Affected ProductsAI
Component: Docker v2 authentication.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same weakness CWE-285 – Improper Authorization
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External POC / Exploit Code
Leaving vuln.today