CVE-2020-35509

MEDIUM

Keycloak 11.0.3 and 12.0.0 - Improper Certificate Validation in Direct-Grant Authenticator

Title source: llm

Description

A flaw was found in keycloak affecting versions 11.0.3 and 12.0.0. An expired certificate would be accepted by the direct-grant authenticator because of missing time stamp validations. The highest threat from this vulnerability is to data confidentiality and integrity.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://access.redhat.com/security/cve/cve-2020-35509

Scores

CVSS v3 5.4

EPSS 0.0009

EPSS Percentile 24.8%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-295 CWE-20

Status published

Products (3)

org.keycloak/keycloak-core 0 - 14.0.0Maven

redhat/keycloak 11.0.3

redhat/keycloak 12.0.0

Published Aug 23, 2022

Tracked Since Feb 18, 2026