CVE-2026-42570

Fixed in a distro release EPSS <1%CVSS 7.5

Svelte devalue is a JavaScript library that serializes values into strings when JSON.stringify isn't sufficient for the job. From version 5.6.3 to before version 5.8.1, devalue.parse could, due to quirks in some JavaScript engines, be convinced to allocate much more memory than was needed when deserializing sparse arrays, leading to excessive memory consumption. This issue has been patched in version 5.8.1.

Published 2026-06-09 · CVE record · OSV

Products: sveltejs devalue, Red Hat Enterprise Linux 10, Red Hat Trusted Artifact Signer 1.4, Red Hat Build of Podman Desktop

Fixed upstream

Distro releases