CVE-2016-8629

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-03-12 · updated 2026-06-17
Weakness: CWE-284

Description

Red Hat Keycloak before version 2.4.0 did not correctly check permissions when handling service account user deletion requests sent to the rest server. An attacker with service account authentication could use this flaw to bypass normal permissions and delete users in a separate realm.

Affected products

Keycloak: before 2.4.0 — fixed in 2.4.0
RedHat Single Sign On: 7.1, 7.2

How to fix

Upgrade to a fixed version: Keycloak 2.4.0. Check the vendor advisory for mitigations.

References

http://rhn.redhat.com/errata/RHSA-2017-0876.html
http://www.securityfocus.com/bid/97392
http://www.securitytracker.com/id/1038180
https://access.redhat.com/errata/RHSA-2017:0872
https://access.redhat.com/errata/RHSA-2017:0873
https://bugzilla.redhat.com/show_bug.cgi?id=1388988
http://rhn.redhat.com/errata/RHSA-2017-0876.html
http://www.securityfocus.com/bid/97392
http://www.securitytracker.com/id/1038180
https://access.redhat.com/errata/RHSA-2017:0872
https://access.redhat.com/errata/RHSA-2017:0873
https://bugzilla.redhat.com/show_bug.cgi?id=1388988

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