Vulnerability/
REDHAT-BUG-2454506

REDHAT-BUG-2454506

Q: What is the severity of REDHAT-BUG-2454506?

The severity of REDHAT-BUG-2454506 is considered high due to the potential for arbitrary command execution.

Q: How do I fix REDHAT-BUG-2454506?

To fix REDHAT-BUG-2454506, upgrade OpenSSH to version 10.3 or later, and ensure configurations are set to minimize risk.

Q: What systems are affected by REDHAT-BUG-2454506?

REDHAT-BUG-2454506 affects OpenSSH versions prior to 10.3.

Q: What is the exploit mechanism for REDHAT-BUG-2454506?

The exploit mechanism for REDHAT-BUG-2454506 involves the use of shell metacharacters in untrusted usernames.

Q: Can default configurations prevent REDHAT-BUG-2454506?

No, REDHAT-BUG-2454506 can occur under non-default configurations, making default settings insufficient for protection.

Published Apr 2, 2026

Updated

In OpenSSH before 10.3, command execution can occur via shell metacharacters in a username within a command line. This requires a scenario where the username on the command line is untrusted, and also requires a non-default configurations of % in ssh_config.

Affected Software

1 affected component

OpenSSH OpenSSH<10.3

Event History

Apr 2, 2026

Data Sourced

via Red Hat·06:02 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

What is the severity of REDHAT-BUG-2454506?

The severity of REDHAT-BUG-2454506 is considered high due to the potential for arbitrary command execution.

How do I fix REDHAT-BUG-2454506?

To fix REDHAT-BUG-2454506, upgrade OpenSSH to version 10.3 or later, and ensure configurations are set to minimize risk.

What systems are affected by REDHAT-BUG-2454506?

REDHAT-BUG-2454506 affects OpenSSH versions prior to 10.3.

What is the exploit mechanism for REDHAT-BUG-2454506?

The exploit mechanism for REDHAT-BUG-2454506 involves the use of shell metacharacters in untrusted usernames.

Can default configurations prevent REDHAT-BUG-2454506?

No, REDHAT-BUG-2454506 can occur under non-default configurations, making default settings insufficient for protection.

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Contact

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