CVE-2026-65954

PHPCSUtils: Remote code execution via eval() in AbstractArrayDeclarationSniff::getActualArrayKey()

CVSS score

8.6

EPSS probability

%0.2

Risk score

0.0

Published

1 d ago

Overview Public Exploits (0)Newsroom Vulnerability Timeline

Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

CVE-2026-65954 Arbitrary Command Execution Vulnerability in PHPCSUtils

Sources read

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

A component in PHPCSUtils versions 1.0.0-alpha1 through 1.2.3 allows command execution via eval() when scanning untrusted PHP code.

Why does it matter?

Developer machines or CI pipelines scanning untrusted PHP code face arbitrary command execution risks on the scanning host.

What should be done?

Follow vendor security advisories
Exclude vulnerable sniffs
Upgrade PHPCSUtils

Chain of evidence and sources2 verified claims

PHPCSUtils paketinin belirli sürümleri, eval() kullanımı nedeniyle komut çalıştırma açığı barındırmaktadır.

S0 · daybreach-canonical S1 · nvd S2 · github

Açık, Universal.Arrays.DuplicateArrayKey ve Universal.Arrays.MixedArrayKeyTypes gibi yollar üzerinden tetiklenebilmektedir.

S0 · daybreach-canonical S1 · nvd S2 · github

Show the technical text from the sources

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.

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CWE: CWE-95

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-65954 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

ID	VENDOR	PRODUCT	ACTION
1	PHPCSStandards	PHPCSUtils	View
2	packagist	phpcsstandards/phpcsutils	View

Total affected vendors: 2|Products: 2

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCORE	VERSION	SEVERITY	VECTOR	SOURCE
8.6	CVSS 3.x	—	Vector not published	GitHub Advisory
8.6	CVSS V31	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	NVD
8.6	CVSS V3_1	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H	CVE CNA
0.0	CVSS 4.0	—	Vector not published	GitHub Advisory

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.

Restrict access to internet-facing services and apply network segmentation.

Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.

Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-65954 is associated with the following CWEs:

CWE-95: Common Weakness Enumeration Entry CWE-95

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-65954 weaknesses.

CAPEC-66: SQL Injection CAPEC-126: Path Traversal CAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim

PermissionsGerekmiyor

UserGerekiyor

Official Sources and Advisories

https://github.com/PHPCSStandards/PHPCSUtils/security/advisories/GHSA-r6hr-vr92-vv28vendor-advisory https://github.com/PHPCSStandards/PHPCSUtils/commit/e8648633ff5b8219b1b3e6346ce85abfc30f1429vendor-advisory https://github.com/PHPCSStandards/PHPCSUtils/releases/tag/1.2.3vendor-advisory https://github.com/PHPCSStandards/PHPCSUtils/pull/778vendor-advisory https://github.com/PHPCSStandards/PHPCSUtils/commit/9f596b50ea4498ea57b8cb341e920233b044debfvendor-advisory https://github.com/FriendsOfPHP/security-advisories/blob/master/phpcsstandards/phpcsutils/CVE-2026-65954.yamlvendor-advisory https://github.com/advisories/GHSA-r6hr-vr92-vv28vendor-advisory

CVSS Vector Radar Chart

8.6 / 10

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone required

User Interaction—

Confidentiality (Gizlilik)Low

Integrity (Bütünlük)High

Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

PHPCSStandards

packagist

Weakness Type (CWE & CAPEC)

CWE-95

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