[Snyk] Security upgrade io.undertow:undertow-servlet from 1.4.18.Final to 2.3.21.Final

[bogarin]

Snyk has created this PR to fix 1 vulnerabilities in the maven dependencies of this project.

Snyk changed the following file(s):

• undertow/pom.xml

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score	Upgrade
	Allocation of Resources Without Limits or Throttling SNYK-JAVA-IOUNDERTOW-15166617	721	io.undertow:undertow-servlet: 1.4.18.Final -> 2.3.21.Final Major version upgrade No Known Exploit

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🦉 Allocation of Resources Without Limits or Throttling

[Copilot]

Pull request overview

This is a Snyk-generated security PR that upgrades the undertow-servlet dependency from version 1.4.18.Final to 2.3.21.Final to fix a high severity vulnerability (Allocation of Resources Without Limits or Throttling, CVSS score 721). This represents a major version upgrade from Undertow 1.x to 2.x.

Changes:

• Upgrade undertow-servlet dependency from 1.4.18.Final to 2.3.21.Final in pom.xml

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[Copilot]

This is a major version upgrade from Undertow 1.x to 2.x, which introduces breaking changes. Key concerns:

1. Java version requirement: Undertow 2.x requires Java 11 as minimum, but the parent pom.xml specifies Java 1.8 (line 1454 in pom.xml). This upgrade will likely cause compilation failures.

2. Security API changes: The code in SecureServer.java and CustomIdentityManager.java uses Undertow's security APIs (IdentityManager, AuthenticationMechanism, SecurityContext), which have undergone significant changes between versions 1.x and 2.x. These may require code modifications.

3. WebSocket API changes: SocketServer.java uses WebSocket APIs that may have changed in the major version upgrade.

4. No test coverage: There are no test files to verify that the application still works correctly after the upgrade.

5. Historical context: The undertow module is currently commented out in the parent pom.xml (line 716) due to build issues since 2019, suggesting this module may not be actively maintained.

Before merging this security fix, the code should be tested to ensure it compiles and runs correctly with Undertow 2.3.21.Final. Consider reviewing the Undertow migration guide and updating any deprecated or changed APIs.