CVE-2026-4800— lodash vulnerable to Code Injection via `_.template` imports key names

lodash vulnerable to Code Injection via `_.template` imports key names

Impact: The fix for CVE-2021-23337 (https://github.com/advisories/GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink. When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time. Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function(). Patches: Users should upgrade to version 4.18.0. Workarounds: Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.

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

对生成代码的控制不恰当(代码注入)

lodash 安全漏洞

lodash是Lodash Utilities开源的一个JavaScript实用程序库。 lodash存在安全漏洞，该漏洞源于对options.imports键名的验证不足，可能导致在模板编译时执行任意代码。

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