It was found that the cookie used for CSRF prevention in Keycloak was not unique to each session. An attacker could use this flaw to gain access to an authenticated user session, leading to possible information disclosure or further attacks.
https://bugzilla.redhat.com/show_bug.cgi?id=1484111
https://access.redhat.com/errata/RHSA-2017:2906
https://access.redhat.com/errata/RHSA-2017:2905
https://access.redhat.com/errata/RHSA-2017:2904
http://www.securityfocus.com/bid/101601
Source: Mitre, NVD
Published: 2017-10-26
Updated: 2025-04-20
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
EPSS: 0.01529