Composer is a dependency manager for PHP. In versions on the 2.x branch prior to 2.2.26 and 2.9.3, attackers controlling remote sources that Composer downloads from might in some way inject ANSI control characters in the terminal output of various Composer commands, causing mangled output and potentially leading to confusion or DoS of the terminal application. There is no proven exploit and this has thus a low severity but we still publish a CVE as it has potential for abuse, and we want to be on the safe side informing users that they should upgrade. Versions 2.2.26 and 2.9.3 contain a patch for the issue.

The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:1970-1 advisory.

    This update for php-composer2 fixes the following issues

    - CVE-2026-40176: command injection via malicious Perforce repository definition (bsc#1262254).
    - CVE-2026-40261: command injection via malicious Perforce source reference/url (bsc#1262255).

    Changes for php-composer2:

    - version update to 2.2.27 (align with upstream LTS version)
     * Security: Hardened git/hg/perforce/fossil identifier validation to ensure branch names starting with -     do      not cause issues (246f807b, 246f807b, 246f807b)
     * Security: Fixed Perforce unescaped user input in queryP4User shell command (246f807b)
     * Security: Fixed usage of insecure 3DES ciphers when ext-curl is missing (21ffece62)
     * Fixed issue handling paths with = in them on Windows (#11568)
    - version 2.2.26 2025-12-30
     * Security: Fixed ANSI sequence injection (GHSA-59pp-r3rg-353g / CVE-2025-67746)
    - version 2.2.25 2024-12-11
     * Fixed deprecation notices appearing on this LTS version in case it is used on modern PHP. Modern PHP     support      is not guaranteed nor tested for though and the main purpose of LTS releases is legacy PHP versions     support. (#12217)
     * Fixed issue on plugin upgrade when it defines multiple classes (#12226)
     * Fixed duplicate errors appearing in the output depending on php settings (#12214)
     * Fixed InstalledVersions returning duplicate data in some instances (#12225)
    - version 2.2.24 2024-06-10
     * Security: Fixed command injection via malicious git branch name (GHSA-47f6-5gq3-vx9c / CVE-2024-35241)
     * Security: Fixed multiple command injections via malicious git/hg branch names (GHSA-v9qv-c7wm-wgmf /     CVE-2024-35242)
     * Security: Fixed secure-http checks that could be bypassed by using malformed URL formats (fa3b9582c)
     * Security: Fixed Filesystem::isLocalPath including windows-specific checks on linux (3c37a67c)
     * Security: Fixed perforce argument escaping (3773f775)
     * Security: Fixed handling of zip bombs when extracting archives (de5f7e32)
     * Security: Fixed Windows command parameter escaping to prevent abuse of unicode characters with best fit     encoding
     * conversion (3130a7455, 04a63b324)
    - version 2.2.23 2024-02-08
     * Security: Fixed code execution and possible privilege escalation via compromised vendor      dir contents (GHSA-7c6p-848j-wh5h / CVE-2024-24821)
    - version 2.2.22 2023-09-29
     * Security: Fixed possible remote code execution vulnerability if composer.phar is publicly accessible,     executable as PHP,      and register_argc_argv is enabled in php.ini (GHSA-jm6m-4632-36hf / CVE-2023-43655)
     * Fixed authentication issue when downloading several files from private Bitbucket in parallel (#11464)
     * Fixed handling of broken junctions on windows (#11550)
     * Fixed loading of root aliases on path repo packages when doing partial updates (#11632)
     * Fixed parsing of lib-curl-openssl version with OSX SecureTransport (#11534)
     * Fixed binary proxies not being transparent when included by another PHP process and returning a value     (#11454)
     * Fixed support for plugin classes being marked as readonly (#11404)
     * Fixed GitHub rate limit reporting (#11366)
     * Fixed issue displaying solver problems with branch names containing % signs (#11359)
    - version 2.2.21 2023-02-15
     * Fixed extra.plugin-optional support in PluginInstaller when doing pre-install checks (#11326)
    - version 2.2.20 2023-02-10
     * Added extra.plugin-optional support for allow auto-disabling unknown plugins which are not critical     when      running non-interactive (#11315)
    - version 2.2.19 2023-02-04
     * Fixed URL sanitizer to handle new GitHub personal access tokens format (#11137)
     * Fixed cache keys to allow _ to avoid conflicts between package names like a-b and a_b (#11229)
     * Fixed handling of --ignore-platform-req with upper-bound ignores to not apply to conflict rules     (#11037)
     * Fixed handling of COMPOSER_DISCARD_CHANGES when set to 0
    - version 2.2.18 2022-08-20
     * Fixed COMPOSER_NO_DEV so it also works with require and remove's --update-no-dev (#10995)
     * Fixed duplicate missing extension warnings being displayed (#10938)
     * Fixed hg version detection (#10955)
     * Fixed git cache invalidation issue when a git tag gets created after the cache has loaded a given     reference (#11004)
    - version 2.2.17 2022-07-13
     * Fixed plugins from CWD/vendor being loaded in some cases like create-project or validate even though     the target      directory is outside of CWD (#10935)
     * Fixed support for legacy (Composer 1.x, e.g. hirak/prestissimo) plugins which will not warn/error     anymore if      not in allow-plugins, as they are anyway not loaded (#10928)
     * Fixed pre-install check for allowed plugins not taking --no-plugins into account (#10925)
     * Fixed support for disable_functions containing disk_free_space (#10936)
     * Fixed RootPackageRepository usages to always clone the root package to avoid interoperability issues     with plugins (#10940)
    - version 2.2.16 2022-07-05
     * Fixed non-interactive behavior of allow-plugins to throw instead of continue with a warning to avoid     broken installs (#10920)
     * Fixed allow-plugins BC mode to ensure old lock files created pre-2.2 can be installed with only a     warning but      plugins fully loaded (#10920)
     * Fixed deprecation notice (#10921)
    - version 2.2.15 2022-07-01
     * Fixed support for cache-read-only where the filesystem is not writable (#10906)
     * Fixed type error when using allow-plugins: true (#10909)
     * Fixed @putenv scripts receiving arguments passed to the command (#10846)
     * Fixed support for spaces in paths with binary proxies on Windows (#10836)
     * Fixed type error in GitDownloader if branches cannot be listed (#10888)
     * Fixed RootPackageInterface issue on PHP 5.3.3 (#10895)
    - version 2.2.14 2022-06-06
     * Fixed handling of broken symlinks when checking whether a package is still installed (#6708)
     * Fixed JSON schema regex pattern for name to be JS compatible (#10811)
     * Fixed bin proxies to allow a proxy to include another one safely (#10823)
     * Fixed gitlab-token JSON schema definition (#10800)
     * Fixed openssl 3.x version parsing as it is now semver compliant
     * Fixed type error when a json file cannot be read (#10818)
     * Fixed parsing of multi-line arrays in funding.yml (#10784)
    - version 2.2.13 2022-05-25
     * Fixed invalid credentials loop when setting up GitLab token (#10748)
     * Fixed PHP 8.2 deprecations (#10766)
     * Fixed lock file changes being output even when the lock file creation is disabled
     * Fixed race condition when multiple requests asking for auth on the same hostname fired concurrently     (#10763)
     * Fixed quoting of commas on Windows (#10775)
     * Fixed issue installing path repos with a disabled symlink function (#10786)
    - version 2.2.12 2022-04-13
     * Security: Fixed command injection vulnerability in HgDriver/GitDriver (GHSA-x7cr-6qr6-2hh6 /     CVE-2022-24828)
     * Fixed curl downloader not retrying when a DNS resolution failure occurs (#10716)
     * Fixed composer.lock file still being used/read when the lock config option is disabled (#10726)
     * Fixed validate command checking the lock file even if the lock option is disabled (#10723)
    - version 2.2.11 2022-04-01
     * Added missing config.bitbucket-oauth in composer-schema.json
     * Added --2.2 flag to self-update to pin the Composer version to the 2.2 LTS range (#10682)
     * Updated semver, jsonlint deps for minor fixes
     * Fixed generation of autoload crashing if a package has a broken path (#10688)
     * Removed dev-master=>dev-main alias from #10372 as it does not work when reloading from lock file and     extracting dev deps (#10651)
    - version 2.2.10 2022-03-29
     * Fixed Bitbucket authorization detection due to API changes (#10657)
     * Fixed validate command warning about dist/source keys if defined (#10655)
     * Fixed deletion/handling of corrupted 0-bytes zip archives (#10666)
    - version 2.2.9 2022-03-15
     * Fixed regression with plugins that modify install path of packages, see docs if you are authoring such     a plugin (#10621)
    - version 2.2.8 2022-03-15
     * Fixed files autoloading sort order to be fully deterministic (#10617)
     * Fixed pool optimization pass edge cases (#10579)
     * Fixed require command failing when self.version is used as constraint (#10593)
     * Fixed --no-ansi / undecorated output still showing color in repo warnings (#10601)
     * Performance improvement in pool optimization step (composer/semver#131)
    - version 2.2.7 2022-02-25
     * Allow installation together with composer/xdebug-handler ^3 (#10528)
     * Fixed support for packages with no licenses in licenses command output (#10537)
     * Fixed handling of allow-plugins: false which kept warning (#10530)
     * Fixed enum parsing in classmap generation when the enum keyword is not lowercased (#10521)
     * Fixed author parsing in init command requiring an email whereas the schema allows a name only (#10538)
     * Fixed issues in require command when requiring packages which do not exist (but are provided by     something else you require) (#10541)
     * Performance improvement in pool optimization step (#10546)
    - version 2.2.6 2022-02-04
     * BC Break: due to an oversight, the COMPOSER_BIN_DIR env var for binaries added in Composer 2.2.2 had to     be renamed      to COMPOSER_RUNTIME_BIN_DIR (#10512)
     * Fixed enum parsing in classmap generation with syntax like enum foo:string without space after :
    (#10498)
     * Fixed package search not urlencoding the input (#10500)
     * Fixed reinstall command not firing pre-install-cmd/post-install-cmd events (#10514)
     * Fixed edge case in path repositories where a symlink: true option would be ignored on old Windows and     old PHP combos (#10482)
     * Fixed test suite compatibility with latest symfony/console releases (#10499)
     * Fixed some error reporting edge cases (#10484, #10451, #10493)
    - version 2.2.5 2022-01-21
     * Disabled composer/package-versions-deprecated by default as it can function using     Composer\InstalledVersions at runtime (#10458)
     * Fixed artifact repositories crashing if a phar file was present in the directory (#10406)
     * Fixed binary proxy issue on PHP <8 when fseek is used on the proxied binary path (#10468)
     * Fixed handling of non-string versions in package repositories metadata (#10470)
    - version 2.2.4 2022-01-08
     * Fixed handling of process timeout when running async processes during installation
     * Fixed GitLab API handling when projects have a repository disabled (#10440)
     * Fixed reading of environment variables (e.g. APPDATA) containing unicode characters to workaround a PHP     bug on Windows (#10434)
     * Fixed partial update issues with path repos missing if a path repo is required by a path repo (#10431)
     * Fixed support for sourcing binaries via the new bin proxies (#10389)
     * Fixed messaging when GitHub tokens need SSO authorization (#10432)

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

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

The remote openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20670-1 advisory.

    - CVE-2025-67746: ANSI control characters injection in terminal output of various Composer commands via     attacker       controlled remote sources (bsc#1255768).
    - CVE-2026-40176: arbitrary command injection via malicious Perforce repository definition (bsc#1262254).
    - CVE-2026-40261: arbitrary command injection via malicious Perforce source reference/url (bsc#1262255).

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:0825-1 advisory.

    CVE-2025-67746: Fixed ANSI control characters injection in the terminal output of various Composer     commands via attacker controlled remote sources. (bsc#1255768)

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1365 advisory.

    Composer is a dependency manager for PHP. In versions on the 2.x branch prior to 2.2.26 and 2.9.3,     attackers controlling remote sources that Composer downloads from might in some way inject ANSI control     characters in the terminal output of various Composer commands, causing mangled output and potentially     leading to confusion or DoS of the terminal application. There is no proven exploit and this has thus a     low severity but we still publish a CVE as it has potential for abuse, and we want to be on the safe side     informing users that they should upgrade. Versions 2.2.26 and 2.9.3 contain a patch for the issue.
    (CVE-2025-67746)

Tenable has extracted the preceding description block directly from the tested product 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-2026-13b4dbe546 advisory.

    ### Version 2.9.3 -  2025-12-30

      * Security: Fixed ANSI sequence injection (GHSA-59pp-r3rg-353g / CVE-2025-67746)
      * Fixed `COMPOSER_NO_SECURITY_BLOCKING` env var not being respected for `updates` done via the `install`     command, and added `--no-security-blocking` flag to `install` as well (#12677)
      * Fixed `update --lock` / `update mirrors` not working when locked packages contain vulnerabilities     (#12645)
      * Fixed `client-certificate` authentication implementation (#12667)
      * Fixed `php-ext` schema not being validated in ValidatingArrayLoader (#12694)
      * Fixed crash when `--bump-after-update` is used and the lock file is disabled (#12660)
      * Fixed support for SecureTransport + LibreSSL on macOS (#12615)
      * Fixed display of reasons for why advisories are ignored (#12668)
      * Fixed compatibility issues when git has log.showSignature enabled (#12666)
      * Fixed curl downloader not retrying when a timeout (err 28) failure occurs (#12662)
      * Fixed EventDispatcher requiring a full Composer instance to function (#12629)



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-2026-0b03072979 advisory.

    ### Version 2.9.3 -  2025-12-30

      * Security: Fixed ANSI sequence injection (GHSA-59pp-r3rg-353g / CVE-2025-67746)
      * Fixed `COMPOSER_NO_SECURITY_BLOCKING` env var not being respected for `updates` done via the `install`     command, and added `--no-security-blocking` flag to `install` as well (#12677)
      * Fixed `update --lock` / `update mirrors` not working when locked packages contain vulnerabilities     (#12645)
      * Fixed `client-certificate` authentication implementation (#12667)
      * Fixed `php-ext` schema not being validated in ValidatingArrayLoader (#12694)
      * Fixed crash when `--bump-after-update` is used and the lock file is disabled (#12660)
      * Fixed support for SecureTransport + LibreSSL on macOS (#12615)
      * Fixed display of reasons for why advisories are ignored (#12668)
      * Fixed compatibility issues when git has log.showSignature enabled (#12666)
      * Fixed curl downloader not retrying when a timeout (err 28) failure occurs (#12662)
      * Fixed EventDispatcher requiring a full Composer instance to function (#12629)



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.

  - Composer is a dependency manager for PHP. In versions on the 2.x branch prior to 2.2.26 and 2.9.3,     attackers controlling remote sources that Composer downloads from might in some way inject ANSI control     characters in the terminal output of various Composer commands, causing mangled output and potentially     leading to confusion or DoS of the terminal application. There is no proven exploit and this has thus a     low severity but we still publish a CVE as it has potential for abuse, and we want to be on the safe side     informing users that they should upgrade. Versions 2.2.26 and 2.9.3 contain a patch for the issue.
    (CVE-2025-67746)

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

ID	Name	Product	Family	Severity
315284	SUSE SLES15 Security Update : php-composer2 (SUSE-SU-2026:1970-1)	Nessus	SuSE Local Security Checks	medium
313630	openSUSE 16 Security Update : php-composer2 (openSUSE-SU-2026:20670-1)	Nessus	SuSE Local Security Checks	medium
301280	SUSE SLES15 / openSUSE 15 Security Update : php-composer2 (SUSE-SU-2026:0825-1)	Nessus	SuSE Local Security Checks	medium
296225	Amazon Linux 2023 : composer (ALAS2023-2026-1365)	Nessus	Amazon Linux Local Security Checks	medium
283686	Fedora 42 : composer (2026-13b4dbe546)	Nessus	Fedora Local Security Checks	medium
283573	Fedora 43 : composer (2026-0b03072979)	Nessus	Fedora Local Security Checks	medium
280698	Linux Distros Unpatched Vulnerability : CVE-2025-67746	Nessus	Misc.	medium

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