Shescape potential environment variable exposure on Windows with CMD
Priority LOW 22CWE-526Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Shescape is a simple shell escape library for JavaScript. An attacker may be able to get read-only access to environment variables. This bug has been patched in version 1.7.1.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00811 57th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed shescape (ericcornelissen): 1.7.1shescape (npm): 1.7.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ericcornelissen | shescape | before 1.7.1 | 1.7.1 | Patch available | CNA |
| — | shescape (npm) | before 1.7.1 | 1.7.1 | Patch available | GHSA-3g7p-8qhx-mc8r |
- shescape Vendorericcornelissen Affected before 1.7.1 Fixed in 1.7.1 Patch available CNA
- shescape (npm) Vendor— Affected before 1.7.1 Fixed in 1.7.1 Patch available GHSA-3g7p-8qhx-mc8r
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:shescape_project:shescape:*:*:*:*:*:node.js:*:* | before 1.7.1 | Vulnerable | ericcornelissen |
- cpe:2.3:a:shescape_project:shescape:*:*:*:*:*:node.js:*:* Versions before 1.7.1 Vulnerable ·ericcornelissen
Remediation
- Fix · CNA shescape (ericcornelissen) Fixed in 1.7.1
- Fix · GHSA-3g7p-8qhx-mc8r shescape (npm) Fixed in 1.7.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-35931
- 2026-10-03 Alias added: GHSA-3g7p-8qhx-mc8r
References
Patch 2
More ericcornelissen Shescape vulnerabilities
- TI-2022-13220 Insufficient escaping of whitespace in shescape CVSS 3.1CRITICAL 9.8
- TI-2022-13219 Insufficient escaping of line feeds for CMD in shescape CVSS 3.1CRITICAL 9.8
- TI-2022-09469 Regular expression denial of service (ReDoS) in shescape CVSS 3.1HIGH 7.5
- TI-2026-24632 Shescape escape() leaves bracket glob expansion active on Bash, BusyBox, and Dash CVSS 4.0MEDIUM 6.9
- TI-2022-16487 Shescape Inefficient Regular Expression Complexity vulnerability CVSS 3.1HIGH 7.5
- TI-2022-08540 Exposure of home directory through shescape on Unix with Bash CVSS 3.1MEDIUM 6.2
Sources
- CVE-2023-35931 · CVE Program
- CVE-2023-35931 · NVD
- FIRST EPSS
- GHSA-3g7p-8qhx-mc8r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences