EUVD-2026-337126

fkie_cve-2024-23682

Artemis Java Test Sandbox versions before 1.8.0 are vulnerable to a sandbox escape when an attacker includes class files in a package that Ares trusts. An attacker can abuse this issue to execute arbitrary Java when a victim executes the supposedly sandboxed code.

GHSA-227w-wv4j-67h4 — Class Loading Vulnerability in Artemis

Affected: Maven: de.tum.in.ase:artemis-java-test-sandbox

### Impact This affects all Artemis users who test Java assignments. **Ares is not required.** Students code that gets automatically tested can run arbitrary code in the container, or arbitrary code on the machine of an assessor in case of manual correction.

### Patches The problem cannot be resolved easily in Ares itself. Use the Maven Enforcer Plugin as follows:

```xml <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-enforcer-plugin</artifactId> <version>3.0.0</version> <executions> <execution> <id>enforce-no-student-code-in-trusted-packages</id> <phase>process-classes</phase> <goals> <goal>enforce</goal> </goals> </execution> </executions> <configuration> <rules> <requireFilesDontExist> <files>  </files> </requireFilesDontExist> </rules> </configuration> </plugin> ```

This fails the build if student classes reside in such packages that Ares trusts. Trusted packages added in Ares using `@AddTrustedPackage` should be added as well.

### For more information If you have any questions or comments about this advisory: * Open a discussion https://github.com/ls1intum/Ares/discussions * Open an issue in https://github.com/ls1intum/Ares/issues * Email us, see https://github.com/ls1intum/Ares/security/policy…

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