CVE-2026-23957 HIGH

CVE-2026-23957: seroval is vulnerable to Denial of Service via array serialization

Vendor Lxsmnsyc
Product seroval
Weakness CWE-770 · Uncontrolled resource consumption
Published January 22, 2026
Last update January 22, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, overriding encoded array lengths by replacing them with an excessively large value causes the deserialization process to significantly increase processing time. This issue has been fixed in version 1.4.1.

Key dates

02Disclosure timeline

January 22, 2026 CVE published
January 22, 2026 Record updated