CVE-2026-227747.5HighCWE-405

CVE-2026-22774: devalue vulnerable to denial of service due to memory exhaustion in devalue.parse

sveltejs · devalue

Vendor fix available · Affected: sveltejs devalue · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.6%probability of exploitation in the next 30 days

50th percentile

050100

Higher than 50% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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 products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

sveltejs · devalue>= 5.3.0, < 5.6.2

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Asymmetric Resource Consumption (Amplification) · Denial of Service
Vendor: sveltejs
Published: January 2026
Band: Unlikely (under 1%), January 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-22774 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.