Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| sveltejs | devalue | >= 5.6.3, < 5.8.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rh-podman-desktop | 1.1.2-1.el10_2 | RHSA-2026:57590 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | devalue | >= 5.6.3, < 5.8.1 | 5.8.1 | GHSA-77vg-94rm-hx3p |
Advisories 1
- RHSA-2026:57590 Red Hat Security Advisory: rh-podman-desktop security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 20, 2026