CVE-2026-15895

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OS Command Injection in jsii-diff npm Package

Publication date: 2026-07-15

Last updated on: 2026-07-15

Assigner: AMZN

Description

OS command injection in the npm package loading component in AWS jsii-diff before 1.131.0 might allow context-dependent attackers to execute arbitrary commands via crafted package specifiers passed to the npm: source argument. To mitigate this issue, users should upgrade to jsii-diff v1.131.0 or later.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-15

Last Modified

2026-07-15

Generated

2026-08-06

AI Q&A

2026-07-16

EPSS Evaluated

2026-08-04

NVD

CVE-2026-15895

EUVD

EUVD-2026-44768

Affected Vendors & Products

Vendor	Product	Version / Range
aws	jsii-diff	to 1.131.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-78	The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

Attack-Flow Graph

Executive Summary

This vulnerability is an OS command injection flaw in the npm package loading component of AWS jsii-diff before version 1.131.0. Attackers could execute arbitrary commands by crafting malicious package specifiers passed via the npm: source argument.

Detection Guidance

To detect this vulnerability, check the installed version of jsii-diff. If it is below 1.131.0, the system is vulnerable. Run: npm list jsii-diff or jsii-diff --version. Also inspect command-line arguments passed to jsii-diff for suspicious npm specifiers.

Impact Analysis

If exploited, attackers could run unauthorized commands on your system with the privileges of the user running jsii-diff. This could lead to data theft, system compromise, or further network infiltration depending on the environment.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's integrity and confidentiality principles or HIPAA's safeguards for protected health information. Compliance may be compromised if systems are exploited.

Mitigation Strategies

Upgrade jsii-diff to version 1.131.0 or later immediately. If upgrading is not possible, restrict access to jsii-diff to trusted users only and avoid passing untrusted arguments to the tool.

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