CVE-2026-15895

High

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.

SeverityHigh

CVSS7.8

Exploit probability—

ProductJsii-diff

PublishedJul 15, 2026

First seenJul 15, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

jsii-diff1.131.0 or later

Patches

github.com/aws/jsii/releases/tag/v1.131.0

Vendor advisories

aws.amazon.com/security/security-bulletins/2026-057-aws/

Affected products

Product	Affected versions	Fixed in
jsii-diffnpm	v < 1.131.0	1.131.0

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