CVE-2021-3637

HIGH

Keycloak < 14.0.0 - Denial of Service via Authentication Session Map Growth

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Issue Tracking, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1979638

Scores

CVSS v3 7.5
EPSS 0.0047
EPSS Percentile 64.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-770
Status published
Products (3)
org.keycloak/keycloak-model-infinispan 0 - 14.0.0Maven
redhat/keycloak < 14.0.0
redhat/single_sign-on 7.0
Published Jul 09, 2021
Tracked Since Feb 18, 2026