CVE-2020-1714

HIGH

Keycloak < 11.0.0 - Remote Code Execution via Unsafe Deserialization

Title source: llm
STIX 2.1

Description

A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.

References (2)

Core 2
Core References
Issue Tracking, Vendor Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1714
Patch, Third Party Advisory x_refsource_confirm
https://github.com/keycloak/keycloak/pull/7053

Scores

CVSS v3 8.8
EPSS 0.0215
EPSS Percentile 84.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (9)
org.keycloak/keycloak-common 0 - 11.0.0Maven
org.keycloak/keycloak-core 0 - 11.0.0Maven
quarkus/quarkus < 1.4.2
redhat/decision_manager 7.0
redhat/jboss_fuse 7.0.0
redhat/keycloak < 11.0.0
redhat/openshift_application_runtimes
redhat/process_automation 7.0
redhat/single_sign-on 7.0
Published May 13, 2020
Tracked Since Feb 18, 2026