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CVE-2026-12644

Quick assessment

Affected
n/a ts-deepmerge
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.

Voodoo Creation TypeScript Deep Merge是Voodoo Creation组织开源的一个支持 ESM 和 CommonJS 的 TypeScript 深度合并库，能够自动推断返回类型，且不会修改源对象。 Voodoo Creation TypeScript Deep Merge 8.0.0之前版本存在异常处理不当漏洞，该漏洞源于对内置Object.prototype方法（如toString、valueOf）处理不当，可能导致未捕获异常，用户控制的输入包含具有非函数值的这些键

CVSS 5.3 · Medium EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a ts-deepmerge < 8.0.0 affected
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I. Basic Information for CVE-2026-12644

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Versions of the package ts-deepmerge before 8.0.0 are vulnerable to Uncaught Exception due to the improper handling of built-in Object.prototype methods (such as toString, valueOf). When user-controlled input contains these keys with non-function values, the resulting merged object becomes broken — any string context operation throws a TypeError, crashing the application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5
Vulnerability Title
Voodoo Creation TypeScript Deep Merge 异常处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Voodoo Creation TypeScript Deep Merge是Voodoo Creation组织开源的一个支持 ESM 和 CommonJS 的 TypeScript 深度合并库，能够自动推断返回类型，且不会修改源对象。 Voodoo Creation TypeScript Deep Merge 8.0.0之前版本存在异常处理不当漏洞，该漏洞源于对内置Object.prototype方法（如toString、valueOf）处理不当，可能导致未捕获异常，用户控制的输入包含具有非函数值的这些键
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

Vendor Product Affected Versions CPE Subscribe
- ts-deepmerge 0 ~ 8.0.0 -

II. Public POCs for CVE-2026-12644

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-12644

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Patches & Fixes for CVE-2026-12644 (1)

Vendor Advisories for CVE-2026-12644 (1)

Proof of Concept for CVE-2026-12644 (1)

Same Patch Batch · n/a · 2026-06-19 · 6 CVEs total

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CVE-2026-51846 Tenda AC7 安全漏洞
CVE-2026-51844 Tenda AC7 缓冲区溢出漏洞
CVE-2026-51845 Tenda AC7 缓冲区溢出漏洞

IV. Related Vulnerabilities

Same product: ts-deepmerge
Same vendor: n/a
Same weakness: CWE-248

V. Comments for CVE-2026-12644

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