CVE-2026-46420: setup php from 2.25.0 (inclusive), before 2.37.1 (exclusive); +1 more affected products

CVE-2026-46420. CVSS 3.1 base score 9.8 (CRITICAL, NVD). EPSS 0.0201 (percentile 0.80734), scored 24-Oct-2026.

Affected technology

setup php · from 2.25.0 (inclusive), before 2.37.1 (exclusive)
shivammathur

setup-php · >= 2.25.0, < 2.37.1
shivammathur

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 3.1 assessment (base score 5.6/10) rates confidentiality, integrity and availability impact as low. NVD’s CVSS 3.1 assessment (base score 9.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 25-Oct-2026 01:29 UTC

CWE: CWE-78
CCR priority: 39.7 /100 (P4)
CVSS 3.1: 9.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.0201 · percentile 0.80734 · 2026-10-24
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-25 01:28:19.133527+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-46420.html