What is CVE-2026-42570?

CVE-2026-42570 is a high-severity vulnerability, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-06-09.

How severe is CVE-2026-42570?

High severity. CVSS v3 base score is 7.5 out of 10.

CVE-2026-42570

CVE-2026-42570

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 conv…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com
security-advisories@github.com
security-advisories@github.com

Frequently asked questions

What is CVE-2026-42570?: CVE-2026-42570 is a high-severity vulnerability, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-06-09.
How severe is CVE-2026-42570?: High severity. CVSS v3 base score is 7.5 out of 10.