Tracker / CVE-2026-17545
CVE-2026-17545
High 7.5
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.
Affected products and versions
| php | php · 8.2.0 → 8.2.34 |
|---|---|
| php | php · 8.3.0 → 8.3.35 |
| php | php · 8.4.0 → 8.4.26 |
| php | php · 8.5.0 → 8.5.11 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.