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CVE-2026-23737— seroval Affected by Remote Code Execution via JSON Deserialization

CVSS 7.5 · High EPSS 0.10% · P26
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I. Basic Information for CVE-2026-23737

Vulnerability Information
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Vulnerability Title
seroval Affected by Remote Code Execution via JSON Deserialization
Source: NVD (National Vulnerability Database)
Vulnerability Description
seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, improper input handling in the JSON deserialization component can lead to arbitrary JavaScript code execution. Exploitation is possible via overriding constant value and error deserialization, allowing indirect access to unsafe JS evaluation. At minimum, attackers need the ability to perform 4 separate requests on the same function, and partial knowledge of how the serialized data is used during later runtime processing. This vulnerability affects the fromJSON and fromCrossJSON functions in a client-to-server transmission scenario. This issue has been fixed in version 1.4.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
可信数据的反序列化
Source: NVD (National Vulnerability Database)
Vulnerability Title
seroval 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
seroval是Alexis H. Munsayac个人开发者的一个格式化Java库。 seroval 1.4.0及之前版本存在代码问题漏洞，该漏洞源于JSON反序列化组件输入处理不当，可能导致任意JavaScript代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
lxsmnsycseroval < 1.4.1 -

II. Public POCs for CVE-2026-23737

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III. Intelligence Information for CVE-2026-23737

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IV. Related Vulnerabilities

Same product: seroval
Same vendor: lxsmnsyc
Same weakness: CWE-502

V. Comments for CVE-2026-23737

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