PHPUnit is a testing framework for PHP. A vulnerability has been discovered in versions prior to 12.5.8, 11.5.50, 10.5.62, 9.6.33, and 8.5.52 involving unsafe deserialization of code coverage data in PHPT test execution. The vulnerability exists in the `cleanupForCoverage()` method, which deserializes code coverage files without validation, potentially allowing remote code execution if malicious `.coverage` files are present prior to the execution of the PHPT test. The vulnerability occurs when a `.coverage` file, which should not exist before test execution, is deserialized without the `allowed_classes` parameter restriction. An attacker with local file write access can place a malicious serialized object with a `__wakeup()` method into the file system, leading to arbitrary code execution during test runs with code coverage instrumentation enabled. This vulnerability requires local file write access to the location where PHPUnit stores or expects code coverage files for PHPT tests. This can occur through CI/CD pipeline attacks, the local development environment, and/or compromised dependencies. Rather than just silently sanitizing the input via `['allowed_classes' => false]`, the maintainer has chosen to make the anomalous state explicit by treating pre-existing `.coverage` files for PHPT tests as an error condition. Starting in versions in versions 12.5.8, 11.5.50, 10.5.62, 9.6.33, when a `.coverage` file is detected for a PHPT test prior to execution, PHPUnit will emit a clear error message identifying the anomalous state. Organizations can reduce the effective risk of this vulnerability through proper CI/CD configuration, including ephemeral runners, code review enforcement, branch protection, artifact isolation, and access control.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-1d1c8f5df2 advisory.

    ## Version 10.5.63 - 2026-01-27

    ### Fixed

    * Regression introduced in PHPUnit 9.6.33

    ----

    ## Version 10.5.62 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs


    ----

    ## Version 10.5.61 - 2026-01-24

    ### Changed

    * `PHPUnit\Framework\MockObject` exceptions are now subtypes of `PHPUnit\Exception`




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8a7678fa99 advisory.

    ## Version 8.5.52 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 8.5.51 - 2026-01-24

    ### Changed

    * `PHPUnit\Framework\MockObject` exceptions subtypes of `PHPUnit\Exception`




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-c3b42a28dd advisory.

    ## Version 11.5.50 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 11.5.49 - 2026-01-24

    ### Fixed

    * [#6362](https://github.com/sebastianbergmann/phpunit/issues/6362): Manually instantiated test doubles     are broken since PHPUnit 11.2
    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Infinite recursion in     `Count::getCountOf()` for unusal implementations of `Iterator` or `IteratorAggregate`



    ----

    ## Version 11.5.48 - 2026-01-16

    ### Changed

    * Reverted a change that caused a [build failure](https://github.com/php/php-     src/actions/runs/21052584327/job/60542023395#step:14:3729) for the [PHP project's nightly community     job](https://phpunit.expert/articles/how-php-and-its-ecosystem-test-each-other.html?ref=github)


    ----

    ## Version 11.5.47 - 2026-01-15

    ### Fixed

    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Mocking a class with a property hook     setter accepting more types than the property results in a fatal error




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8c25940d05 advisory.

    ## Version 12.5.8 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 12.5.7 - 2026-01-24

    ### Fixed

    * [#6362](https://github.com/sebastianbergmann/phpunit/issues/6362): Manually instantiated test doubles     are broken since PHPUnit 11.2
    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Infinite recursion in     `Count::getCountOf()` for unusal implementations of `Iterator` or `IteratorAggregate`



    ----

    ## Version 12.5.6 - 2026-01-16

    ### Changed

    * Reverted a change that caused a [build failure](https://github.com/php/php-     src/actions/runs/21052584327/job/60542023395#step:14:3729) for the [PHP project's nightly community     job](https://phpunit.expert/articles/how-php-and-its-ecosystem-test-each-other.html?ref=github)



    ----

    ## Version 12.5.5 - 2026-01-15

    ### Deprecated

    * [#6461](https://github.com/sebastianbergmann/phpunit/issues/6461): `any()` matcher (soft deprecation)

    ### Fixed

    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Mocking a class with a property hook     setter accepting more types than the property results in a fatal error



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-a1cb6b0f95 advisory.

    ## Version 9.6.34 - 2026-01-27

    ### Fixed

    * Regression introduced in PHPUnit 9.6.33

    ----

    ## Version 9.6.33 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 9.6.32 - 2026-01-24

    ### Changed

    * `PHPUnit\Framework\MockObject` exceptions are now subtypes of `PHPUnit\Exception`



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has a package installed that is affected by a vulnerability as referenced in the dla-4470 advisory.

    - -----------------------------------------------------------------------     Debian LTS Advisory DLA-4470-1              debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Utkarsh Gupta     February 06, 2026                           https://wiki.debian.org/LTS
    - -----------------------------------------------------------------------

    Package        : phpunit     Version        : 9.5.2-1+deb11u1     CVE ID         : CVE-2026-24765

    PHPUnit is a testing framework for PHP. A vulnerability has been     discovered involving unsafe deserialization of code coverage data in     PHPT test execution. The vulnerability exists in the     `cleanupForCoverage()` method, which deserializes code coverage files     without validation, potentially allowing remote code execution if     malicious `.coverage` files are present prior to the execution of the     PHPT test.

    For Debian 11 bullseye, this problem has been fixed in version     9.5.2-1+deb11u1.

    We recommend that you upgrade your phpunit packages.

    For the detailed security status of phpunit please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/phpunit

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-dad4e31f49 advisory.

    ## Version 8.5.52 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 8.5.51 - 2026-01-24

    ### Changed

    * `PHPUnit\Framework\MockObject` exceptions subtypes of `PHPUnit\Exception`




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8ccfe50c58 advisory.

    ## Version 11.5.50 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 11.5.49 - 2026-01-24

    ### Fixed

    * [#6362](https://github.com/sebastianbergmann/phpunit/issues/6362): Manually instantiated test doubles     are broken since PHPUnit 11.2
    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Infinite recursion in     `Count::getCountOf()` for unusal implementations of `Iterator` or `IteratorAggregate`



    ----

    ## Version 11.5.48 - 2026-01-16

    ### Changed

    * Reverted a change that caused a [build failure](https://github.com/php/php-     src/actions/runs/21052584327/job/60542023395#step:14:3729) for the [PHP project's nightly community     job](https://phpunit.expert/articles/how-php-and-its-ecosystem-test-each-other.html?ref=github)


    ----

    ## Version 11.5.47 - 2026-01-15

    ### Fixed

    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Mocking a class with a property hook     setter accepting more types than the property results in a fatal error




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8d8a292bba advisory.

    ## Version 9.6.34 - 2026-01-27

    ### Fixed

    * Regression introduced in PHPUnit 9.6.33

    ----

    ## Version 9.6.33 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 9.6.32 - 2026-01-24

    ### Changed

    * `PHPUnit\Framework\MockObject` exceptions are now subtypes of `PHPUnit\Exception`



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-ff411cd463 advisory.

    ## Version 10.5.63 - 2026-01-27

    ### Fixed

    * Regression introduced in PHPUnit 9.6.33

    ----

    ## Version 10.5.62 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs


    ----

    ## Version 10.5.61 - 2026-01-24

    ### Changed

    * `PHPUnit\Framework\MockObject` exceptions are now subtypes of `PHPUnit\Exception`




Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-470a48f838 advisory.

    ## Version 12.5.8 - 2026-01-27

    ### Changed

    * To prevent Poisoned Pipeline Execution (PPE) attacks using prepared `.coverage` files in pull requests,     a PHPT test will no longer be run if the temporary file for writing code coverage information already     exists before the test runs



    ----

    ## Version 12.5.7 - 2026-01-24

    ### Fixed

    * [#6362](https://github.com/sebastianbergmann/phpunit/issues/6362): Manually instantiated test doubles     are broken since PHPUnit 11.2
    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Infinite recursion in     `Count::getCountOf()` for unusal implementations of `Iterator` or `IteratorAggregate`



    ----

    ## Version 12.5.6 - 2026-01-16

    ### Changed

    * Reverted a change that caused a [build failure](https://github.com/php/php-     src/actions/runs/21052584327/job/60542023395#step:14:3729) for the [PHP project's nightly community     job](https://phpunit.expert/articles/how-php-and-its-ecosystem-test-each-other.html?ref=github)



    ----

    ## Version 12.5.5 - 2026-01-15

    ### Deprecated

    * [#6461](https://github.com/sebastianbergmann/phpunit/issues/6461): `any()` matcher (soft deprecation)

    ### Fixed

    * [#6470](https://github.com/sebastianbergmann/phpunit/issues/6470): Mocking a class with a property hook     setter accepting more types than the property results in a fatal error



Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - PHPUnit is a testing framework for PHP. A vulnerability has been discovered in versions prior to 12.5.8,     11.5.50, 10.5.62, 9.6.33, and 8.5.52 involving unsafe deserialization of code coverage data in PHPT test     execution. The vulnerability exists in the `cleanupForCoverage()` method, which deserializes code coverage     files without validation, potentially allowing remote code execution if malicious `.coverage` files are     present prior to the execution of the PHPT test. The vulnerability occurs when a `.coverage` file, which     should not exist before test execution, is deserialized without the `allowed_classes` parameter     restriction. An attacker with local file write access can place a malicious serialized object with a     `__wakeup()` method into the file system, leading to arbitrary code execution during test runs with code     coverage instrumentation enabled. This vulnerability requires local file write access to the location     where PHPUnit stores or expects code coverage files for PHPT tests. This can occur through CI/CD pipeline     attacks, the local development environment, and/or compromised dependencies. Rather than just silently     sanitizing the input via `['allowed_classes' => false]`, the maintainer has chosen to make the anomalous     state explicit by treating pre-existing `.coverage` files for PHPT tests as an error condition. Starting     in versions in versions 12.5.8, 11.5.50, 10.5.62, 9.6.33, when a `.coverage` file is detected for a PHPT     test prior to execution, PHPUnit will emit a clear error message identifying the anomalous state.
    Organizations can reduce the effective risk of this vulnerability through proper CI/CD configuration,     including ephemeral runners, code review enforcement, branch protection, artifact isolation, and access     control. (CVE-2026-24765)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
298228	Fedora 42 : phpunit10 (2026-1d1c8f5df2)	Nessus	Fedora Local Security Checks	high
298227	Fedora 42 : phpunit8 (2026-8a7678fa99)	Nessus	Fedora Local Security Checks	high
298216	Fedora 42 : phpunit11 (2026-c3b42a28dd)	Nessus	Fedora Local Security Checks	high
298213	Fedora 42 : phpunit12 (2026-8c25940d05)	Nessus	Fedora Local Security Checks	high
298212	Fedora 42 : phpunit9 (2026-a1cb6b0f95)	Nessus	Fedora Local Security Checks	high
298211	Debian dla-4470 : phpunit - security update	Nessus	Debian Local Security Checks	high
298002	Fedora 43 : phpunit8 (2026-dad4e31f49)	Nessus	Fedora Local Security Checks	high
298001	Fedora 43 : phpunit11 (2026-8ccfe50c58)	Nessus	Fedora Local Security Checks	high
297999	Fedora 43 : phpunit9 (2026-8d8a292bba)	Nessus	Fedora Local Security Checks	high
297998	Fedora 43 : phpunit10 (2026-ff411cd463)	Nessus	Fedora Local Security Checks	high
297996	Fedora 43 : phpunit12 (2026-470a48f838)	Nessus	Fedora Local Security Checks	high
297036	Linux Distros Unpatched Vulnerability : CVE-2026-24765	Nessus	Misc.	high

Detections

Analytics

CVE-2026-24765

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Tenable Plugins

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