CVE-2026-107623

A flaw was found in the OIDC Dynamic Client Registration (DCR) component of Keycloak. A bug in the response serialization causes the backchannel logout offline token revocation setting to be omitted from responses. When a client performs a standard update, this missing information causes the setting to be silently disabled. As a result, offline tokens may remain valid even after a user session is terminated via backchannel logout.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-107623
https://bugzilla.redhat.com/show_bug.cgi?id=2547957

Configurations

No configuration.

History

08 Oct 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-08 15:17

Updated : 2026-10-08 20:49

NVD link : CVE-2026-107623

Mitre link : CVE-2026-107623

CVE.ORG link : CVE-2026-107623

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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