What is CVE-2026-15895?

CVE-2026-15895 is a high-severity vulnerability in AWS Jsii, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-07-15.

How severe is CVE-2026-15895?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in AWS Jsii

CVE-2026-15895

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.010 (60.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Aws Jsii — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (release-notes, patch)

Frequently asked questions

What is CVE-2026-15895?: CVE-2026-15895 is a high-severity vulnerability in AWS Jsii, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-07-15.
How severe is CVE-2026-15895?: High severity. CVSS v3 base score is 7.8 out of 10.