Improper Handling of File Names Affecting php package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.32% (23rd percentile)

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  • Snyk IDSNYK-RHEL7-PHP-20163782
  • published27 Sept 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

NewCVE-2026-17545  (opens in a new tab)
CWE-66  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 php.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php package and not the php package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

On Windows, PHP's filesystem and stream APIs do not reject reserved device names such as CON, PRN, AUX, NUL, COM1 to COM9, LPT1 to LPT9, CONIN$ and CONOUT$ when they appear as a component of a path. An attacker-controlled filename therefore reaches CreateFileW() and opens a device instead of the regular file the application expected, which can block or hang the request and exhaust worker processes.

CVSS Base Scores

version 3.1