CVE-2026-107623: Missing Authorization in Red Hat Red Hat Build of Keycloak
Description
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 v3.1
Score 4.3medium
Affected software
Red Hat
Red Hat Build of Keycloak
Red Hat
Red Hat Build of Keycloak
Red Hat
Red Hat Single Sign-On 7
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-10-08T13:50:01.978Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-107623","vendor":"Red Hat"}]
Threat ID: 6ac7b0ec2cdf04f656221c3a
Added to database: 10/08/2026, 15:04:12 UTC
Last updated: 10/08/2026, 15:04:12 UTC
Views: 1
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