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chore(deps): update dependency junit:junit to v4.13.1 [security] (master) #54

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@renovatebot-confluentinc renovatebot-confluentinc bot commented Jun 14, 2025

For any questions/concerns about this PR, please review the Renovate Bot wiki/FAQs, or the #renovatebot Slack channel.

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
junit:junit (source) 4.12 -> 4.13.1 age adoption passing confidence

Warning

Some dependencies could not be looked up. Check the warning logs for more information.

TemporaryFolder on unix-like systems does not limit access to created files

CVE-2020-15250 / GHSA-269g-pwp5-87pp

More information

Details

Vulnerability

The JUnit4 test rule TemporaryFolder contains a local information disclosure vulnerability.

Example of vulnerable code:

public static class HasTempFolder {
    @​Rule
    public TemporaryFolder folder = new TemporaryFolder();

    @​Test
    public void testUsingTempFolder() throws IOException {
        folder.getRoot(); // Previous file permissions: `drwxr-xr-x`; After fix:`drwx------`
        File createdFile= folder.newFile("myfile.txt"); // unchanged/irrelevant file permissions
        File createdFolder= folder.newFolder("subfolder"); // unchanged/irrelevant file permissions
        // ...
    }
}
Impact

On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system.

This vulnerability does not allow other users to overwrite the contents of these directories or files. This is purely an information disclosure vulnerability.

When analyzing the impact of this vulnerability, here are the important questions to ask:

  1. Do the JUnit tests write sensitive information, like API keys or passwords, into the temporary folder?
    • If yes, this vulnerability impacts you, but only if you also answer 'yes' to question 2.
    • If no, this vulnerability does not impact you.
  2. Do the JUnit tests ever execute in an environment where the OS has other untrusted users.
    This may apply in CI/CD environments but normally won't be 'yes' for personal developer machines.
    • If yes, and you answered 'yes' to question 1, this vulnerability impacts you.
    • If no, this vulnerability does not impact you.
Patches

Because certain JDK file system APIs were only added in JDK 1.7, this this fix is dependent upon the version of the JDK you are using.

  • Java 1.7 and higher users: this vulnerability is fixed in 4.13.1.
  • Java 1.6 and lower users: no patch is available, you must use the workaround below.
Workarounds

If you are unable to patch, or are stuck running on Java 1.6, specifying the java.io.tmpdir system environment variable to a directory that is exclusively owned by the executing user will fix this vulnerability.

References
Similar Vulnerabilities
For more information

If you have any questions or comments about this advisory, please pen an issue in junit-team/junit4.

Severity

  • CVSS Score: 4.4 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

  • If you want to rebase/retry this PR, check this box

This PR has been generated by Renovate Bot.

@renovatebot-confluentinc renovatebot-confluentinc bot changed the title Update dependency junit:junit to v4.13.1 [SECURITY] (master) chore(deps): update dependency junit:junit to v4.13.1 [security] (master) Nov 5, 2025
@vinnybod vinnybod closed this Dec 16, 2025
@vinnybod vinnybod deleted the renovate/master-maven-junit-junit-vulnerability branch December 16, 2025 20:31
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renovatebot-confluentinc bot commented Dec 17, 2025

Renovate Ignore Notification

Because you closed this PR without merging, Renovate will ignore this update (4.13.1). You will get a PR once a newer version is released. To ignore this dependency forever, add it to the ignoreDeps array of your Renovate config.

If you accidentally closed this PR, or if you changed your mind: rename this PR to get a fresh replacement PR.

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