CVE-2026-73412
Shescape: Path disclosure on Unix with Zsh
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.
INFO
Published Date :
Aug. 12, 2026, 8:17 p.m.
Last Modified :
Oct. 24, 2026, 3:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update Shescape to version 2.1.14 or later.
- Update Shescape to version 3.0.1 or later.
- Review Zsh configuration for security.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-73412.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-73412 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-73412
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-73412 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-73412 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Changed Translation Title: shescape de ericcornelissen, Description: Shescape es una simple biblioteca de escape de shell para JavaScript. Antes de 2.1.14 y 3.0.1, esto afecta a los usuarios de Shescape en sistemas Unix que configuran explícitamente el shell a Zsh, o verdadero cuyo el shell predeterminado es Zsh, usyo escape y escapeAll. Las opciones de Zsh EXTENDED_GLOB y MAGIC_EQUAL_SUBST exacerban el problema. En cierto caso, un atacante puede aprovechar la expansión del directorio de inicio y la sintaxis de glob extendido para obtener listas de archivos y directorios en el sistema. Dependiendo de lo que haga el comyo, esto puede usarse para filtrar más información. Este problema está solucionado en las versiones 2.1.14 y 3.0.1. Title: shescape de ericcornelissen, Description: Shescape es una simple biblioteca de escape de shell para JavaScript. Antes de 2.1.14 y 3.0.1, esto afecta a los usuarios de Shescape en sistemas Unix que configuran explícitamente el shell a Zsh, o verdadero cuyo el shell predeterminado es Zsh, usyo escape y escapeAll. Las opciones de Zsh EXTENDED_GLOB y MAGIC_EQUAL_SUBST exacerban el problema. En cierto caso, un atacante puede aprovechar la expansión del directorio de inicio y la sintaxis de glob extendido para obtener listas de archivos y directorios en el sistema. Dependiendo de lo que haga el comyo, esto puede usarse para filtrar más información. Este problema está solucionado en las versiones 2.1.14 y 3.0.1. -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: shescape de ericcornelissen, Description: Shescape es una simple biblioteca de escape de shell para JavaScript. Antes de 2.1.14 y 3.0.1, esto afecta a los usuarios de Shescape en sistemas Unix que configuran explícitamente el shell a Zsh, o verdadero cuyo el shell predeterminado es Zsh, usyo escape y escapeAll. Las opciones de Zsh EXTENDED_GLOB y MAGIC_EQUAL_SUBST exacerban el problema. En cierto caso, un atacante puede aprovechar la expansión del directorio de inicio y la sintaxis de glob extendido para obtener listas de archivos y directorios en el sistema. Dependiendo de lo que haga el comyo, esto puede usarse para filtrar más información. Este problema está solucionado en las versiones 2.1.14 y 3.0.1. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 13, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-73412', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-08-13T12:37:55.312683Z'} -
New CVE Received by [email protected]
Aug. 12, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'ericcornelissen', 'product': 'shescape', 'versions': [{'status': 'affected', 'version': '< 2.1.14'}, {'status': 'affected', 'version': '>= 3.0.0, < 3.0.1'}]}] Added 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. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-78 Added CWE CWE-155 Added Reference https://github.com/ericcornelissen/shescape/commit/43d70b59d09bbe5c3fd02ef08b3a123e977ed9de Added Reference https://github.com/ericcornelissen/shescape/commit/b4b34c394e7f9da2775bb75381066b9a228c425f Added Reference https://github.com/ericcornelissen/shescape/pull/2649 Added Reference https://github.com/ericcornelissen/shescape/pull/2651 Added Reference https://github.com/ericcornelissen/shescape/releases/tag/v2.1.14 Added Reference https://github.com/ericcornelissen/shescape/releases/tag/v3.0.1 Added Reference https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6v4m-fw66-8r4x