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CVE-2023-0264

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Date: August 4, 2023

A flaw was found in Keycloaks OpenID Connect user authentication, which may incorrectly authenticate requests. An authenticated attacker who could obtain information from a user request within the same realm could use that data to impersonate the victim and generate new session tokens. This issue could impact confidentiality, integrity, and availability.

Language: Java

Severity Score

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

Insufficient Verification of Data Authenticity

CWE-345

Top Fix

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Upgrade Version

Upgrade to version org.keycloak:keycloak-services:21.0.1

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CVSS v3.1

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

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