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.
References (2)
Core 2
Core References
Patch release-notes
patch
https://github.com/aws/jsii/releases/tag/v1.131.0
Vendor Advisory vendor-advisory
https://aws.amazon.com/security/security-bulletins/2026-057-aws/
Scores
CVSS v3
7.8
EPSS
0.0063
EPSS Percentile
46.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-78
Status
published
Products (1)
AWS/jsii
< 1.131.0
Published
Jul 15, 2026
Tracked Since
Jul 16, 2026