Signal is active with 1 mentions in latest observed window
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NVD description
Flight is an extensible micro-framework for PHP. Prior to 3.18.1, the make:controller CLI command calls mkdir(..., recursive: true) on a path built from the user-supplied controller name, before Nette's class-name validation runs. The class-file write is correctly rejected by Nette when the name contains /, but the recursive directory creation side effect is already committed — including directories located outside the project root through ../ traversal. This vulnerability is fixed in 3.18.1.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
CVE-2026-42549 Flight is an extensible micro-framework for PHP. Prior to 3.18.1, the make:controller CLI command calls mkdir(..., recursive: true) on a path built from the user-supp… https://www.cve.org/CVERecord?id=CVE-2026-42549
Post summary
CVE-2026-42549 exposes Flight PHP’s CLI make:controller command to create directories from unsanitized user input, allowing potential arbitrary file creation; the issue is fixed in version 3.18.1.