Vulnerability Details CVE-2026-23956
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0
and below, overriding RegExp serialization with extremely large patterns can exhaust JavaScript runtime memory during deserialization. Additionally, overriding RegExp serialization with patterns that trigger catastrophic backtracking can lead to ReDoS (Regular Expression Denial of Service). This issue has been fixed in version 1.4.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 7.3%
CVSS Severity
CVSS v3 Score 7.5
References