sebastianbergmann PHPUnit up to 13.4.3 PHPT Code Coverage TestCase.php coverageFilesDirectory temp file

Summaryinfo

A vulnerability, which was classified as problematic, has been found in sebastianbergmann PHPUnit up to 13.4.3. This issue affects the function TestCase::coverageFilesDirectory of the file src/Runner/Phpt/TestCase.php of the component PHPT Code Coverage. Performing a manipulation results in temp file. This vulnerability is identified as CVE-2026-119193. The attack is only possible with local access. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in sebastianbergmann PHPUnit up to 13.4.3. This affects the function TestCase::coverageFilesDirectory of the file src/Runner/Phpt/TestCase.php of the component PHPT Code Coverage. The manipulation with an unknown input leads to a temp file vulnerability. CWE is classifying the issue as CWE-377. Creating and using insecure temporary files can leave application and system data vulnerable to attack. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

PHPUnit is a testing framework for PHP. From 13.4.0 until 13.4.4, the TestCase::coverageFilesDirectory() logic in src/Runner/Phpt/TestCase.php creates temporary files for PHPT code coverage in a predictable phpunit-phpt directory under sys_get_temp_dir() and reuses that directory without verifying its ownership or permissions. On multi-user systems with a shared temporary path, a local attacker who creates the directory before the developer runs PHPT tests with code coverage can replace the generated job file before the child process executes it with require, allowing arbitrary code execution with the developer's privileges while the test and coverage report appear successful. PHPUnit 12.5 and earlier, default macOS and Windows configurations with per-user temporary directories, and single-user environments where another user cannot create files in the temporary path are not affected. This issue is fixed in 13.4.4.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-119193 since 10/29/2026. The exploitability is told to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:src/Runner/Phpt/TestCase.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 13.4.4 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• sebastianbergmann

Name

• PHPUnit

Version

• 13.4.0
• 13.4.1
• 13.4.2
• 13.4.3

Website

• Product: https://github.com/sebastianbergmann/phpunit/

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