REDHAT-BUG-2392595: High severity Apple CUPS vulnerability

Published Sep 2, 2025
·
Updated

Authentication Bypass vulnerability in the authorization handling of the CUPS print server. The flaw exists in the cupsdAuthorize() function (scheduler/auth.c) where, if the configured AuthType is anything other than Basic, but the request still includes an Authorization: Basic ... header, the password validation step is skipped. This allows an attacker to bypass authentication checks entirely. By exploiting this issue, an attacker can perform privileged operations, including modifying configuration files, without providing valid credentials. This vulnerability can be exploited remotely depending on the deployment configuration and does not require valid authentication.

Affected Software

1 affected component
Apple CUPS

Event History

Sep 2, 2025
Data Sourced
via Red Hat·12:56 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of REDHAT-BUG-2392595?

The severity of REDHAT-BUG-2392595 is categorized as a medium risk due to the potential for unauthorized access through authentication bypass.

2

How do I fix REDHAT-BUG-2392595?

To fix REDHAT-BUG-2392595, configure the CUPS server to use the Basic authentication method or adjust the AuthType settings appropriately.

3

What systems are affected by REDHAT-BUG-2392595?

REDHAT-BUG-2392595 affects the Apple CUPS print server where authentication handling is improperly managed.

4

What is the nature of the vulnerability in REDHAT-BUG-2392595?

REDHAT-BUG-2392595 is an authentication bypass vulnerability that allows unauthorized users to access resources when the AuthType is not set to Basic.

5

How does REDHAT-BUG-2392595 impact security?

REDHAT-BUG-2392595 impacts security by potentially allowing attackers to exploit the flaw and gain unauthorized access to printing services.

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