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Medium severity5.9NVD Advisory· Published Mar 31, 2026· Updated Apr 3, 2026

CVE-2026-34043

CVE-2026-34043

Description

Serialize JavaScript to a superset of JSON that includes regular expressions and functions. Prior to version 7.0.5, there is a Denial of Service (DoS) vulnerability caused by CPU exhaustion. When serializing a specially crafted "array-like" object (an object that inherits from Array.prototype but has a very large length property), the process enters an intensive loop that consumes 100% CPU and hangs indefinitely. This issue has been patched in version 7.0.5.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
serialize-javascriptnpm
>= 5.0.0, < 7.0.57.0.5

Affected products

28

Patches

Vulnerability mechanics

References

6

News mentions

0

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