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USN-8144-1: Undertow vulnerability

USN-8144-1: Undertow vulnerability

Ubuntu • April 2, 2026

It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain unintended access to user sessions.

It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain unintended access to user sessions.

It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain unintended access to user sessions.

It was discovered that Undertow incorrectly validated the Host header in incoming HTTP requests. A remote attacker could possibly use this issue to gain unintended access to user sessions.

In general, a standard system update will make all the necessary changes.

The problem can be corrected by updating your system to the following package versions:

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Extracted Entities

Attack Types (1)

Companies (1)

Platforms (1)