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CVE-2026-73412— Shescape: Path disclosure on Unix with Zsh

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Zsh的EXTENDED_GLOB和MAGIC_EQUAL_SUBST选项处理不当，可能导致攻击者利用主目录扩展和扩展通配符语法获取系统文件和目录列表，造成信息泄露。

CVSS 6.3 · Medium EPSS 0.61% · P48

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery

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-2026-73412

Vulnerability Information
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Vulnerability Title
Shescape: Path disclosure on Unix with Zsh
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, this impacts users of Shescape on Unix systems that explicitly configure shell to Zsh, or true when the default shell is Zsh, using the escape and escapeAll. The Zsh options EXTENDED_GLOB and MAGIC_EQUAL_SUBST exacerbate the problem. In certain case, an attacker can leverage home directory expansion and extended glob syntax to obtain lists of files and directories on the system. Depending on what the command does, this may be used to leak more information. 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:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
ericcornelissen shescape 输入验证错误漏洞
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Zsh的EXTENDED_GLOB和MAGIC_EQUAL_SUBST选项处理不当，可能导致攻击者利用主目录扩展和扩展通配符语法获取系统文件和目录列表，造成信息泄露。
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-2026-73412

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III. Intelligence Information for CVE-2026-73412

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Patches & Fixes for CVE-2026-73412 (4)

Vendor Advisories for CVE-2026-73412 (1)

Other References for CVE-2026-73412 (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-2026-73411 6.3 MEDIUM Shescape: Home-directory disclosure in assignment context on Unix with Dash

IV. Related Vulnerabilities

Same product: shescape
Same vendor: ericcornelissen
Same weakness: CWE-78

V. Comments for CVE-2026-73412

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