7.5
High
CVE-2026-22774 Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| devalue 5.3 | 5.3.0 → < 5.6.2 | 5.6.2 |
| Red Hat Trusted Artifact Signer 1.2 1770739056 | earliest → < 1770739056 | 1770739056 |
| Red Hat Trusted Artifact Signer 1.3 1770107452 | earliest → < 1770107452 | 1770107452 |
| Red Hat Build of Podman Desktop - Tech Preview | Versions not published |
Other CVEs of devalue
The 16 CVEs of devalue →
CVE-2026-123569
Devalue before 5.6.3 Denial of Service via Sparse Array Serialization
8.7
High
CVE-2026-123568
Sveltejs devalue before 5.6.3 Prototype Pollution via uneval Output
2.1
Low
CVE-2026-123566
Devalue before 5.9.3 CPU Amplification Denial of Service via uneval
8.7
High
CVE-2026-123567
Sveltejs devalue before 5.6.4 Prototype Injection via parse and unflatten
6.3
Medium