Description
Shescape before 2.1.15 (and 3.0.0 before 3.0.2) fails to properly escape tilde (~) characters in assignment contexts on Unix systems where the shell is explicitly configured to "sh" or true and /bin/sh points to BusyBox. Using the escape and escapeAll APIs with untrusted input in an assignment prefixed to a command, an attacker can inject a tilde payload to disclose the user's home directory location and, depending on usage, alter the location on which a command operates.
Published: 2026-08-15
Score: 6.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 31 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 31 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Title Shescape before 2.1.15 Home Directory Disclosure via BusyBox Shescape before 2.1.15 and 3.0.2 Home Directory Disclosure via BusyBox
Weaknesses CWE-200
Metrics cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

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'}


Sun, 16 Aug 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Ericcornelissen
Ericcornelissen shescape
Vendors & Products Ericcornelissen
Ericcornelissen shescape

Sat, 15 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
Description Shescape before 2.1.15 (and 3.0.0 before 3.0.2) fails to properly escape tilde (~) characters in assignment contexts on Unix systems where the shell is explicitly configured to "sh" or true and /bin/sh points to BusyBox. Using the escape and escapeAll APIs with untrusted input in an assignment prefixed to a command, an attacker can inject a tilde payload to disclose the user's home directory location and, depending on usage, alter the location on which a command operates.
Title Shescape before 2.1.15 Home Directory Disclosure via BusyBox
First Time appeared Shescape Project
Shescape Project shescape
Weaknesses CWE-116
CPEs cpe:2.3:a:shescape_project:shescape:*:*:*:*:*:node.js:*:*
Vendors & Products Shescape Project
Shescape Project shescape
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Ericcornelissen Shescape
Shescape Project Shescape
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-31T14:08:21.499Z

Reserved: 2026-08-10T19:10:18.101Z

Link: CVE-2026-73055

cve-icon Vulnrichment

Updated: 2026-08-17T16:00:57.632Z

cve-icon NVD

Status : Deferred

Published: 2026-08-15T22:16:55.427

Modified: 2026-08-31T15:17:43.303

Link: CVE-2026-73055

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-31T16:00:06Z

Weaknesses