Description
A flaw was found in the offline_access scope in Keycloak. This issue would affect users of shared computers more (especially if cookies are not cleared), due to a lack of root session validation, and the reuse of session ids across root and user authentication sessions. This enables an attacker to resolve a user session attached to a previously authenticated user; when utilizing the refresh token, they will be issued a token for the original user.
References (12)
Scores
CVSS v3
6.8
EPSS
0.0023
EPSS Percentile
45.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-613
CWE-384
Status
published
Products (12)
org.keycloak/keycloak-parent
0 - 20.0.2Maven
redhat/keycloak
< 20.0.2
redhat/openshift_container_platform
4.9
redhat/openshift_container_platform
4.10
redhat/openshift_container_platform_for_linuxone
4.9
redhat/openshift_container_platform_for_linuxone
4.10
redhat/openshift_container_platform_for_power
4.9
redhat/openshift_container_platform_for_power
4.10
redhat/openshift_container_platform_ibm_z_systems
4.9
redhat/openshift_container_platform_ibm_z_systems
4.10
... and 2 more
Published
Sep 20, 2023
Tracked Since
Feb 18, 2026