CVE-2026-23736

—

CVSS 3.1

9.8 critical

EPSS

<1%p18

Published

Jan 21, 2026 (Jan 21, 2026)

Modified

Jun 17, 2026

Description

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.

Vendors: lxsmnsyc
Products: seroval
Weakness: CWE-1321
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.3%)

In the news0 stories

No ingested article mentions this CVE yet.