Vulnerability Details CVE-2026-23736
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This vulnerability affects only JSON deserialization functionality. This issue is fixed in version 1.4.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 41.9%
CVSS Severity
CVSS v3 Score 7.3
References