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CVE-2026-73411— Shescape: Home-directory disclosure in assignment context on Unix with Dash

Quick assessment

Affected
ericcornelissen shescape
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.

ericcornelissen shescape是ericcornelissen个人开发者的一个安全转义shell命令参数的组件。 ericcornelissen shescape 2.1.14之前版本和3.0.0至3.0.1之前版本存在安全漏洞，该漏洞源于在Unix Dash shell环境下getEscapeFunction未能转义冒号或等号后的波浪号，可能导致攻击者泄露主目录路径并改变命令操作位置。

CVSS 6.3 · Medium EPSS 0.59% · P47

Possible ATT&CK Techniques 1 AI

T1610 · Deploy Container

Affected Version Matrix 2

VendorProduct Version RangeStatus
ericcornelissen shescape < 2.1.14 affected
>= 3.0.0, < 3.0.1 affected
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I. Basic Information for CVE-2026-73411

Vulnerability Information
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Vulnerability Title
Shescape: Home-directory disclosure in assignment context on Unix with Dash
Source: CVE Program / CVE List V5
Vulnerability Description
Shescape is a simple shell escape library for JavaScript. Prior to 2.1.14 and 3.0.1, getEscapeFunction in src/internal/unix/dash.js fails to escape ~ after : or = when applications use the escape or escapeAll APIs on Unix with shell set to dash, or with shell set to true when Dash is the default, and interpolate the result into an assignment prefixed to a command. An attacker who controls the input can supply a value such as :~ to disclose the home-directory path and may change the location on which the command operates. This issue is fixed in versions 2.1.14 and 3.0.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对输出编码和转义不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
ericcornelissen shescape 输出处理不当漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ericcornelissen shescape是ericcornelissen个人开发者的一个安全转义shell命令参数的组件。 ericcornelissen shescape 2.1.14之前版本和3.0.0至3.0.1之前版本存在安全漏洞，该漏洞源于在Unix Dash shell环境下getEscapeFunction未能转义冒号或等号后的波浪号，可能导致攻击者泄露主目录路径并改变命令操作位置。
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
ericcornelissen shescape < 2.1.14 -

II. Public POCs for CVE-2026-73411

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III. Intelligence Information for CVE-2026-73411

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Patches & Fixes for CVE-2026-73411 (4)

Vendor Advisories for CVE-2026-73411 (1)

Other References for CVE-2026-73411 (2)

Same Patch Batch · ericcornelissen · 2026-08-12 · 4 CVEs total

CVE-2026-73414 9.2 CRITICAL Shescape: Shell injection via unescaped parentheses on Windows with CMD
CVE-2026-73413 8.7 HIGH Shescape: Quadratic-time denial of service in flag-protection
CVE-2026-73412 6.3 MEDIUM Shescape: Path disclosure on Unix with Zsh

IV. Related Vulnerabilities

Same product: shescape
Same vendor: ericcornelissen
Same weakness: CWE-116

V. Comments for CVE-2026-73411

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