---
title: "CVE-2026-65954: PHPCSUtils - Remote Code Execution"
description: "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."
url: https://panop.io/threat-heartbeat/CVE-2026-65954/
---

# 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 ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-65954)

## 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](https://cwe.mitre.org/data/definitions/95.html)

## 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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-65954](https://nvd.nist.gov/vuln/detail/CVE-2026-65954)
- [https://github.com/PHPCSStandards/PHPCSUtils/commit/e8648633ff5b8219b1b3e6346ce85abfc30f1429](https://github.com/PHPCSStandards/PHPCSUtils/commit/e8648633ff5b8219b1b3e6346ce85abfc30f1429)
- [https://github.com/PHPCSStandards/PHPCSUtils/releases/tag/1.2.3](https://github.com/PHPCSStandards/PHPCSUtils/releases/tag/1.2.3)
- [https://github.com/PHPCSStandards/PHPCSUtils/security/advisories/GHSA-r6hr-vr92-vv28](https://github.com/PHPCSStandards/PHPCSUtils/security/advisories/GHSA-r6hr-vr92-vv28)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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