GHSA-vw5p-8cq8-m7mv Devalue is vulnerable to denial of service due to memory exhaustion in devalue.parse

• npm devalue: >= 5.3.0, < 5.6.2 → fixed in 5.6.2

Summary Certain inputs can cause `devalue.parse` to consume excessive CPU time and/or memory, potentially leading to denial of service in systems that parse input from untrusted sources. This affects applications using `devalue.parse` on externally-supplied data. The root cause is the typed array hydration expecting an `ArrayBuffer` as input, but not checking the assumption before creating the typed array. Details The parser's typed array hydration logic does not properly validate input before processing. Specially crafted inputs can cause disproportionate memory allocation or CPU usage on the receiving system. Impact This is a denial of service vulnerability affecting systems that use `devalue.parse` to handle data from potentially untrusted sources. Affected systems should upgrade to patched versions immediately.