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CWE-403

Exposure of File Descriptor to Unintended Control Sphere ('File Descriptor Leak')

A process does not close sensitive file descriptors before invoking a child process, which allows the child to perform unauthorized I/O operations using those descriptors.

Impactr finds and proves whether CWE-403 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.