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CVE-2026-34043

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CVE-2026-34043

Published: Mar 31, 2026

Modified: Mar 31, 2026

PUBLISHED

CVSS v3.1

5.9

MEDIUM

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.

VendorProductVersions

yahoo

serialize-javascript

affected
< 7.0.5

Weaknesses (CWE)

CWE-400
CWE-834

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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