{"id":"CVE-2026-65954","aliases":["EUVD-2026-97779","GHSA-r6hr-vr92-vv28"],"status":"published","title":"PHPCSUtils: Remote code execution via eval() in AbstractArrayDeclarationSniff::getActualArrayKey()","description":"PHPCSUtils is a suite of utility functions for use with PHP_CodeSniffer. From 1.0.0-alpha1 until 1.2.3, PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey() evaluates attacker-controlled array-key expressions with eval(), allowing callback-form keys in untrusted PHP code scanned by an extending sniff to execute arbitrary commands on the scanning host. Known reachable paths include Universal.Arrays.DuplicateArrayKey and Universal.Arrays.MixedArrayKeyTypes. This issue is fixed in version 1.2.3.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00155,"percentile":0.04738,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-95"],"published":"2026-09-29T17:57:16Z","modified":"2026-10-28T02:30:52Z","fixes":[{"ecosystem":"Packagist","package":"phpcsstandards/phpcsutils","fixed_in":["1.2.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"phpcsstandards/phpcsutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0-alpha1"},{"fixed":"1.2.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"phpcsstandards/phpcsutils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0-alpha1"},{"fixed":"1.2.3"}]}],"versions":["1.0.0","1.0.0-alpha1","1.0.0-alpha2","1.0.0-alpha3","1.0.0-alpha4","1.0.0-rc1","1.0.1","1.0.10","1.0.11","1.0.12","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","1.1.0","1.1.1","1.1.2","1.1.3","1.2.0","1.2.1","1.2.2"]}],"products":[{"vendor":"phpcsstandards","product":"phpcsutils"}],"references":[{"url":"https://github.com/PHPCSStandards/PHPCSUtils/security/advisories/GHSA-r6hr-vr92-vv28","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/PHPCSStandards/PHPCSUtils/commit/e8648633ff5b8219b1b3e6346ce85abfc30f1429","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/PHPCSStandards/PHPCSUtils/releases/tag/1.2.3","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/PHPCSStandards/PHPCSUtils/pull/778","tags":["web"]},{"url":"https://github.com/PHPCSStandards/PHPCSUtils/commit/9f596b50ea4498ea57b8cb341e920233b044debf","tags":["web"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/phpcsstandards/phpcsutils/CVE-2026-65954.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r6hr-vr92-vv28"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65954.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65954","tags":["advisory"]},{"url":"https://github.com/PHPCSStandards/PHPCSUtils","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-65954","title":"PHPCSUtils: Remote code execution via eval() in AbstractArrayDeclarationSniff::getActualArrayKey()","description":"PHPCSUtils is a suite of utility functions for use with PHP_CodeSniffer. From 1.0.0-alpha1 until 1.2.3, PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey() evaluates attacker-controlled array-key expressions with eval(), allowing callback-form keys in untrusted PHP code scanned by an extending sniff to execute arbitrary commands on the scanning host. Known reachable paths include Universal.Arrays.DuplicateArrayKey and Universal.Arrays.MixedArrayKeyTypes. This issue is fixed in version 1.2.3.","status":"published","published":"2026-10-12T18:51:01.522Z","modified":"2026-10-13T16:00:35.79Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T13:37:13.934727Z"}],"euvd":[{"id":"EUVD-2026-97779","description":"PHPCSUtils is a suite of utility functions for use with PHP_CodeSniffer. From 1.0.0-alpha1 until 1.2.3, PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey() evaluates attacker-controlled array-key expressions with eval(), allowing callback-form keys in untrusted PHP code scanned by an extending sniff to execute arbitrary commands on the scanning host. Known reachable paths include Universal.Arrays.DuplicateArrayKey and Universal.Arrays.MixedArrayKeyTypes. This issue is fixed in version 1.2.3.","status":"published","published":"2026-10-12T18:51:01Z","modified":"2026-10-13T16:00:35Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T17:27:20.028612Z"}],"ghsa":[{"id":"GHSA-r6hr-vr92-vv28","title":"PHPCSUtils: Remote code execution via eval() in AbstractArrayDeclarationSniff::getActualArrayKey()","description":"### Impact\n\nPHPCSUtils versions 1.0.0-alpha1 through 1.2.2 contain an arbitrary code execution vulnerability in `PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey()`. The vulnerable method is reached by any sniff that extends `AbstractArrayDeclarationSniff` and calls `getActualArrayKey()`.\n\nRunning PHPCS over untrusted PHP code through such a sniff, for example, in a CI pipeline that lints pull requests, or on a developer machine reviewing third-party code, could lead to arbitrary command execution on the scanning host.\n\nThe vulnerability happens when the method determines the value of an array key using `eval()`. A maliciously crafted array key such as `'system'('id')` would be executed when the code was scanned.\n\n### Known attack vectors\n\nKnown code paths that reach the vulnerable method include the following PHPCSExtra sniffs:\n\n- `Universal.Arrays.DuplicateArrayKey`\n- `Universal.Arrays.MixedArrayKeyTypes`\n\nOther packages that call `AbstractArrayDeclarationSniff::getActualArrayKey()` may also be vulnerable.\n\n### Patches\n\nThis issue has been fixed in PHPCSUtils 1.2.3. We recommend all users upgrade to 1.2.3 or later.\n\n### Workaround\n\nUsers who cannot upgrade immediately can disable the sniffs that reach the vulnerable method by adding `\u003cexclude\u003e` tags to their custom ruleset (replace the placeholder standard and sniff names with the ones used in your setup):\n\n```xml\n\u003crule ref=\"Standard\"\u003e\n\t\u003cexclude name=\"Standard.Category.SniffName\"/\u003e\n\u003c/rule\u003e\n```\n\nFor example, to disable the two PHPCSExtra sniffs listed under \"Known attack vectors\":\n\n```xml\n\u003crule ref=\"Universal\"\u003e\n\t\u003cexclude name=\"Universal.Arrays.DuplicateArrayKey\"/\u003e\n\t\u003cexclude name=\"Universal.Arrays.MixedArrayKeyTypes\"/\u003e\n\u003c/rule\u003e\n```\n\nTo verify that the sniffs have been disabled, run PHPCS with the `-e` flag, which lists all the sniffs a standard will run. The excluded sniffs should no longer appear in the output:\n\n```\nphpcs -e --standard=/path/to/ruleset.xml\n```\n\n### Credits\n\nMany thanks to [@rodrigoprimo](https://github.com/rodrigoprimo) for responsibly disclosing this vulnerability.\n\n### How can I report a security bug?\n\nPlease report security vulnerabilities privately via [the \"Security and quality\" tab on the PHPCSUtils repository](https://github.com/PHPCSStandards/PHPCSUtils/security).","status":"published","published":"2026-09-29T17:57:16Z","modified":"2026-09-29T17:57:17Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T14:41:22.654187Z"}],"nvd":[{"id":"CVE-2026-65954","description":"PHPCSUtils is a suite of utility functions for use with PHP_CodeSniffer. From 1.0.0-alpha1 until 1.2.3, PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey() evaluates attacker-controlled array-key expressions with eval(), allowing callback-form keys in untrusted PHP code scanned by an extending sniff to execute arbitrary commands on the scanning host. Known reachable paths include Universal.Arrays.DuplicateArrayKey and Universal.Arrays.MixedArrayKeyTypes. This issue is fixed in version 1.2.3.","status":"published","published":"2026-10-12T19:16:39.567Z","modified":"2026-10-16T20:04:29.76Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T14:12:56.310333Z"}],"osv":[{"id":"CVE-2026-65954","title":"PHPCSUtils: Remote code execution via eval() in AbstractArrayDeclarationSniff::getActualArrayKey()","description":"PHPCSUtils is a suite of utility functions for use with PHP_CodeSniffer. From 1.0.0-alpha1 until 1.2.3, PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey() evaluates attacker-controlled array-key expressions with eval(), allowing callback-form keys in untrusted PHP code scanned by an extending sniff to execute arbitrary commands on the scanning host. Known reachable paths include Universal.Arrays.DuplicateArrayKey and Universal.Arrays.MixedArrayKeyTypes. This issue is fixed in version 1.2.3.","status":"published","published":"2026-10-12T18:51:01.522Z","modified":"2026-10-28T02:30:52.508581852Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T15:45:14.46177Z"},{"id":"GHSA-r6hr-vr92-vv28","title":"PHPCSUtils: Remote code execution via eval() in AbstractArrayDeclarationSniff::getActualArrayKey()","description":"### Impact\n\nPHPCSUtils versions 1.0.0-alpha1 through 1.2.2 contain an arbitrary code execution vulnerability in `PHPCSUtils\\AbstractSniffs\\AbstractArrayDeclarationSniff::getActualArrayKey()`. The vulnerable method is reached by any sniff that extends `AbstractArrayDeclarationSniff` and calls `getActualArrayKey()`.\n\nRunning PHPCS over untrusted PHP code through such a sniff, for example, in a CI pipeline that lints pull requests, or on a developer machine reviewing third-party code, could lead to arbitrary command execution on the scanning host.\n\nThe vulnerability happens when the method determines the value of an array key using `eval()`. A maliciously crafted array key such as `'system'('id')` would be executed when the code was scanned.\n\n### Known attack vectors\n\nKnown code paths that reach the vulnerable method include the following PHPCSExtra sniffs:\n\n- `Universal.Arrays.DuplicateArrayKey`\n- `Universal.Arrays.MixedArrayKeyTypes`\n\nOther packages that call `AbstractArrayDeclarationSniff::getActualArrayKey()` may also be vulnerable.\n\n### Patches\n\nThis issue has been fixed in PHPCSUtils 1.2.3. We recommend all users upgrade to 1.2.3 or later.\n\n### Workaround\n\nUsers who cannot upgrade immediately can disable the sniffs that reach the vulnerable method by adding `\u003cexclude\u003e` tags to their custom ruleset (replace the placeholder standard and sniff names with the ones used in your setup):\n\n```xml\n\u003crule ref=\"Standard\"\u003e\n\t\u003cexclude name=\"Standard.Category.SniffName\"/\u003e\n\u003c/rule\u003e\n```\n\nFor example, to disable the two PHPCSExtra sniffs listed under \"Known attack vectors\":\n\n```xml\n\u003crule ref=\"Universal\"\u003e\n\t\u003cexclude name=\"Universal.Arrays.DuplicateArrayKey\"/\u003e\n\t\u003cexclude name=\"Universal.Arrays.MixedArrayKeyTypes\"/\u003e\n\u003c/rule\u003e\n```\n\nTo verify that the sniffs have been disabled, run PHPCS with the `-e` flag, which lists all the sniffs a standard will run. The excluded sniffs should no longer appear in the output:\n\n```\nphpcs -e --standard=/path/to/ruleset.xml\n```\n\n### Credits\n\nMany thanks to [@rodrigoprimo](https://github.com/rodrigoprimo) for responsibly disclosing this vulnerability.\n\n### How can I report a security bug?\n\nPlease report security vulnerabilities privately via [the \"Security and quality\" tab on the PHPCSUtils repository](https://github.com/PHPCSStandards/PHPCSUtils/security).","status":"published","published":"2026-09-29T17:57:16Z","modified":"2026-09-29T18:15:04.713403731Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-95"],"updated_at":"2026-11-02T15:46:55.480549Z"}]}}