Seroval `fromJSON`/`fromCrossJSON` denial of service via unvalidated array node length

Date Oct 28, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product npm ยท seroval
CVE CVE-2026-116584
High-risk advisory CVE-2026-116584

Summary

Seroval `fromJSON`/`fromCrossJSON` denial of service via unvalidated array node length

Why it matters

GitHub has published a reviewed security advisory for seroval. Prioritize it with other application dependency updates, especially because EPSS places it in the 30% percentile.

Operator check

Check whether seroval is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. EPSS probability: 0.4%; percentile: 30%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.