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Shescape CVE-2022-24725

MEDIUM
Information Exposure (CWE-200)
2022-03-03 security-advisories@github.com
5.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Data exposure prevention
MITRE ATT&CK

2 techniques across 2 tactics: Collection, Discovery

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 5.5 (MEDIUM). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A local attacker with access to the system could access sensitive data that should not be disclosed.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.5% exploitation probability (EPSS)

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AnalysisAI

Shescape is a shell escape package for JavaScript. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Minimize information in error messages, implement proper access controls, encrypt sensitive data at rest and in transit.

Affected Packages

npm shescape fix: 1.5.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Exposure of Sensitive Information (CWE-200), which allows attackers to access sensitive data that should not be disclosed. Shescape is a shell escape package for JavaScript. An issue in versions 1.4.0 to 1.5.1 allows for exposure of the home directory on Unix systems when using Bash with the escape or escapeAll functions from the _shescape_ API with the interpolation option set to true. Other tested shells, Dash and Zsh, are not affected. Depending on how the output of _shescape_ is used, directory traversal may be possible in the application using _shescape_. The issue was patched in version 1.5.1. As a workaround, manually escape all instances of the tilde character (~) using arg.replace(/~/g, "\\~"). Affected products include: Shescape Project Shescape. Version information: version 1.5.1..

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

Shescape is a shell escape package for JavaScript. An issue in versions 1.4.0 to 1.5.1 allows for exposure of the home directory on Unix systems when using Bash with the escape or escapeAll functions from the _shescape_ API with the interpolation option set to true. Other tested shells, Dash and Zsh, are not affected. Depending on how the output of _shescape_ is used, directory traversal may be possible in the application using _shescape_. The issue was patched in version 1.5.1. As a workaround, manually escape all instances of the tilde character (~) using arg.replace(/~/g, "\\~").

Threat Intelligence Overview

EPSS Score
0.5%
Top 61% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 0.5%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

48
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:shescape_project:shescape:*:*:*:*:*:node.js:*:*
CVE-2022-31180 CRITICAL POC
9.8 Aug 01

Shescape is a simple shell escape package for JavaScript. Rated critical severity (CVSS 9.8), this vulnerability is remo

CVE-2022-31179 CRITICAL POC
9.8 Aug 01

Shescape is a simple shell escape package for JavaScript. Rated critical severity (CVSS 9.8), this vulnerability is remo

CVE-2023-40185 HIGH POC
8.6 Aug 23

shescape is simple shell escape library for JavaScript. Rated high severity (CVSS 8.6), this vulnerability is remotely e

CVE-2021-21384 HIGH POC
7.8 Mar 19

shescape is a simple shell escape package for JavaScript. Rated high severity (CVSS 7.8), this vulnerability is low atta

CVE-2022-25918 HIGH POC
7.5 Oct 27

The package shescape from 1.5.10 and before 1.6.1 are vulnerable to Regular Expression Denial of Service (ReDoS) via the

CVE-2022-36064 HIGH POC
7.5 Sep 06

Shescape is a shell escape package for JavaScript. Rated high severity (CVSS 7.5), this vulnerability is remotely exploi

CVE-2026-73414 CRITICAL
9.2 Aug 12

Command injection in Shescape (npm shell-escaping library) versions below 2.1.14 and the 3.0.x line below 3.0.1 allows a

CVE-2026-73413 HIGH
8.7 Aug 12

Quadratic-time CPU exhaustion in Shescape's flag-protection loop allows any attacker who can supply untrusted input to t

CVE-2023-35931 MEDIUM POC
4.3 Jun 23

Shescape is a simple shell escape library for JavaScript. Rated medium severity (CVSS 4.3), this vulnerability is remote

CVE-2026-32094 MEDIUM
6.5 Mar 11

Shescape versions prior to 2.1.10 fail to properly escape square-bracket glob patterns in Bash, BusyBox sh, and Dash, al

CVE-2026-73412 MEDIUM
6.3 Aug 12

Incomplete Zsh special-character escaping in Shescape allows unauthenticated attackers who control input strings to bypa

CVE-2026-73411 MEDIUM
6.3 Aug 12

Incomplete tilde-escaping in Shescape's Dash shell mode allows attacker-controlled input to bypass sanitization and trig

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