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GHSA-vw5p-8cq8-m7mv

Devalue is vulnerable to denial of service due to memory exhaustion in devalue.parse

Source: GitHub Advisory Database (reviewed) High CVE-2026-22774

Packages

EcosystemPackageAffectedFixed in
npm devalue >= 5.3.0, < 5.6.2 5.6.2

Details

As written in the advisory (Markdown source, shown as plain text).

## 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.

References

External links from the advisory. They lead to third-party sites.