CVE-2026-65954 PHPCSUtils - Remote Code Execution

PHPCSUtils 1.0.0-alpha1 to 1.2.3 contains a remote code execution caused by eval() of attacker-controlled array-key expressions in AbstractArrayDeclarationSniff::getActualArrayKey(), letting attackers execute arbitrary commands on the scanning host, exploit requires scanning untrusted PHP code.

CVSS base score 8.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Published
12 October 2026
Updated
15 October 2026
Weakness
CWE-95

Vendor fix

Upgrade to version 1.2.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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