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CVE-2023-0091

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Date: January 11, 2023

A flaw was found in Keycloak, where it did not properly check client tokens for possible revocation in its client credential flow. This flaw allows an attacker to access or modify potentially sensitive information.

Language: Java

Severity Score

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

Incorrect Authorization

CWE-863

Top Fix

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Upgrade Version

Upgrade to version org.keycloak:keycloak-core:20.0.3

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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