CVE-2026-23736— seroval Affected by Prototype Pollution via JSON Deserialization
Quick assessment
Affected
lxsmnsyc seroval
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
seroval是Alexis H. Munsayac个人开发者的一个格式化Java库。 seroval 1.4.0及之前版本存在安全漏洞，该漏洞源于JSON反序列化过程中输入验证不当，可能导致原型污染。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-23736
Vulnerability Information
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Vulnerability Title
seroval Affected by Prototype Pollution via JSON Deserialization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1321
Source: CVE Program / CVE List V5
Vulnerability Title
seroval 安全漏洞
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及之前版本存在安全漏洞，该漏洞源于JSON反序列化过程中输入验证不当，可能导致原型污染。
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
II. Public POCs for CVE-2026-23736
| # | POC Description | Source Link | Shenlong Link |
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Patches & Fixes for CVE-2026-23736 (1)
-
`1.4.1` and `1.4.2` · lxsmnsyc/seroval@ce9408e · GitHub x_refsource_MISC
IV. Related Vulnerabilities
Same product: seroval
-
CVE-2026-59940
Seroval: `seroval.fromJSON()` Promise resolver type confusio -
CVE-2026-24006
Seroval affected by Denial of Service via Deeply Nested Obje -
CVE-2026-23957
seroval is vulnerable to Denial of Service via array seriali -
CVE-2026-23956
seroval affected by Denial of Service via RegExp serializati -
CVE-2026-23737
seroval Affected by Remote Code Execution via JSON Deseriali
Same vendor: lxsmnsyc
-
CVE-2026-59940
Seroval: `seroval.fromJSON()` Promise resolver type confusio -
CVE-2026-24006
Seroval affected by Denial of Service via Deeply Nested Obje -
CVE-2026-23957
seroval is vulnerable to Denial of Service via array seriali -
CVE-2026-23956
seroval affected by Denial of Service via RegExp serializati -
CVE-2026-23737
seroval Affected by Remote Code Execution via JSON Deseriali
Same weakness: CWE-1321
-
CVE-2026-18420
RCE via Prototype Pollution in OpenSearch Dashboards -
CVE-2026-77083
n8n before 1.123.69 Code Node Sandbox Escape via Function.pr -
CVE-2026-23929
Prototype pollution leading to stored XSS -
CVE-2026-71553
ApostropheCMS: 2nd-order prototype pollution via PATCH leadi -
CVE-2026-73654
Trigger.dev: Prototype pollution via run metadata operations
V. Comments for CVE-2026-23736
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