CVE-2026-65954
Published:October 12, 2026
Updated:October 13, 2026
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.
Affected Packages
https://github.com/PHPCSStandards/PHPCSUtils.git (GITHUB):
Affected version(s) >=1.0.0-alpha1 <1.2.3Fix Suggestion:
Update to version 1.2.3phpcsstandards/phpcsutils (PHP):
Affected version(s) >=1.0.0-alpha1 <1.2.3Fix Suggestion:
Update to version 1.2.3Related Resources (7)
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Contact UsCVSS v4
Base Score:
9.3
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.6
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
EPSS
Base Score:
0.21