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OpenAdvisories
High · 7.5 CVE-2026-23957 EUVD-2026-3668GHSA-66fc-rw6m-c2q6

seroval is vulnerable to Denial of Service via array serialization

Published Jan 22, 2026 · Updated Jan 22, 2026 · Assigned by GitHub_M

Description

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0
and below, overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to significantly increase processing time. This issue has been fixed in version 1.4.1.

Affected products

VendorProductAffectedFixed
lxsmnsyc seroval < 1.4.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm seroval < 1.4.1 1.4.1 GHSA-66fc-rw6m-c2q6

References