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CVE-2026-27601— Underscore.js 安全漏洞

一分钟漏洞结论

影响对象
jashkenas underscore
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Underscore.js是jashkenas个人开发者的一个轻量级的JavaScript实用工具库。 Underscore.js 1.13.8之前版本存在安全漏洞，该漏洞源于_.flatten和_.isEqual函数使用无深度限制的递归，可能导致攻击者通过触发堆栈溢出造成拒绝服务。

AI 预测 7.5 利用难度: 较易 EPSS 1.03% · P62

可能的 ATT&CK 技术 1 AI

T1496 · Resource Hijacking
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一、 漏洞 CVE-2026-27601 基础信息

漏洞信息
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Vulnerability Title
Underscore.js has unlimited recursion in _.flatten and _.isEqual, potential for DoS attack
来源: CVE Program / CVE List V5
Vulnerability Description
Underscore.js is a utility-belt library for JavaScript. Prior to 1.13.8, the _.flatten and _.isEqual functions use recursion without a depth limit. Under very specific conditions, detailed below, an attacker could exploit this in a Denial of Service (DoS) attack by triggering a stack overflow. Untrusted input must be used to create a recursive datastructure, for example using JSON.parse, with no enforced depth limit. The datastructure thus created must be passed to _.flatten or _.isEqual. In the case of _.flatten, the vulnerability can only be exploited if it is possible for a remote client to prepare a datastructure that consists of arrays at all levels AND if no finite depth limit is passed as the second argument to _.flatten. In the case of _.isEqual, the vulnerability can only be exploited if there exists a code path in which two distinct datastructures that were submitted by the same remote client are compared using _.isEqual. For example, if a client submits data that are stored in a database, and the same client can later submit another datastructure that is then compared to the data that were saved in the database previously, OR if a client submits a single request, but its data are parsed twice, creating two non-identical but equivalent datastructures that are then compared. Exceptions originating from the call to _.flatten or _.isEqual, as a result of a stack overflow, are not being caught. This vulnerability is fixed in 1.13.8.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
来源: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
来源: CVE Program / CVE List V5
Vulnerability Title
Underscore.js 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Underscore.js是jashkenas个人开发者的一个轻量级的JavaScript实用工具库。 Underscore.js 1.13.8之前版本存在安全漏洞，该漏洞源于_.flatten和_.isEqual函数使用无深度限制的递归，可能导致攻击者通过触发堆栈溢出造成拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
jashkenas underscore < 1.13.8 -

二、漏洞 CVE-2026-27601 的公开POC

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三、漏洞 CVE-2026-27601 的情报信息

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CVE-2026-27601 补丁与修复 (2)

CVE-2026-27601 厂商安全公告 (1)

IV. Related Vulnerabilities

Same product: underscore
Same weakness: CWE-770

V. Comments for CVE-2026-27601

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