GHSA-F886-M6HF-6M8V brace-expansion: Zero-step sequence causes process hang and memory exhaustion

Impact A brace pattern with a zero step value e.g., 1..2..0 causes the sequence generation loop to run indefinitely, making the process hang for seconds and allocate heaps of memory. The loop in question:...

Infinite loop

Overview brace-expansion is a Brace expansion as known from sh/bash Affected versions of this package are vulnerable to Infinite loop through the expand function when processing a brace pattern with a zero step value. An attacker can cause the process to hang and exhaust system memory by supplyin...