CVE-2026-73411

Shescape: Home-directory disclosure in assignment context on Unix with Dash

Published Aug 12, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-q53c-4prm-w95q Shescape: Home-directory disclosure in assignment context on Unix with Dash
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ericcornelissen
Ericcornelissen shescape
Vendors & Products Ericcornelissen
Ericcornelissen shescape
Type Values Removed Values Added
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.
Title Shescape: Home-directory disclosure in assignment context on Unix with Dash
Weaknesses CWE-116
CWE-200
References
Metrics cvssV4_0

{'score': 6.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 12, 2026, 8:54 PM
Reserved
Aug 12, 2026, 2:32 PM
Status
Deferred
Published
Aug 12, 2026, 8:17 PM
Modified
Oct 24, 2026, 3:10 PM