CVE-2021-3637

Published: Jul 9, 2021Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.

Affected (2)

Products: Redhat: Keycloak, Single Sign On

Redhat

2 products

Keycloak

Single Sign On

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Redhat Keycloak	Before 14.0.0
Redhat Single Sign On	Version 7.0

Related CWEs

CWE-770

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (2)

https://bugzilla.redhat.com/show_bug.cgi?id=1979638

Source: secalert@redhat.com

Issue TrackingVendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1979638

Source: af854a3a-2127-422b-91ae-364da2661108

Issue TrackingVendor Advisory

Timeline

No history available yet.