Detections
Analytics
CVE-2026-22774
high
Description
Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From 5.3.0 to 5.6.1, 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. This vulnerability is fixed in 5.6.2.
References
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22774.json
https://github.com/sveltejs/devalue/security/advisories/GHSA-vw5p-8cq8-m7mv
https://github.com/sveltejs/devalue/releases/tag/v5.6.2
https://github.com/sveltejs/devalue/commit/e46afa64dd2b25aa35fb905ba5d20cea63aabbf7
https://bugzilla.redhat.com/show_bug.cgi?id=2430095
https://access.redhat.com/security/cve/CVE-2026-22774