Shescape is a simple shell escape library for JavaScript. Prior to 2.1.9, an attacker may be able to bypass escaping for the shell being used. This can result, for example, in exposure of sensitive information. This impacts users of Shescape that configure their shell to point to a file on disk that is a link to a link. The precise result of being affected depends on the actual shell used and incorrect shell identified by Shescape. This vulnerability is fixed in 2.1.9.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
ericcornelissen shescape affected
Version Status Constraints
< 2.1.9 affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories
Source ID Title
Github GHSA Github GHSA GHSA-6f6w-6j58-rq76 Shescape has possible misidentification of shell due to link chains
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/ericcornelissen/shescape/pull/2388 cve-icon
https://github.com/ericcornelissen/shescape/security/advisories/GHSA-6f6w-6j58-rq76 cve-icon
https://www.npmjs.com/package/shescape/v/2.1.9 cve-icon
History

Mon, 09 Mar 2026 23:00:00 +0000

Type Values Removed Values Added
Description Shescape is a simple shell escape library for JavaScript. Prior to 2.1.9, an attacker may be able to bypass escaping for the shell being used. This can result, for example, in exposure of sensitive information. This impacts users of Shescape that configure their shell to point to a file on disk that is a link to a link. The precise result of being affected depends on the actual shell used and incorrect shell identified by Shescape. This vulnerability is fixed in 2.1.9.
Title Shescape has possible misidentification of shell due to link chains
Weaknesses CWE-200
References
Metrics cvssV4_0

{'score': 2.9, 'vector': '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/E:P'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-09T22:48:14.873Z

Reserved: 2026-03-07T16:40:05.884Z

Link: CVE-2026-30916

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses