Vulnerability Details CVE-2026-34043
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.4%
CVSS Severity
CVSS v3 Score 5.9
References