What is CVE-2026-8663?

CVE-2026-8663 is a medium-severity vulnerability in Linux Linux_kernel, classified under OS Command Injection. CVSS score: 6.0/10. Published 2026-06-25.

How severe is CVE-2026-8663?

Medium severity. CVSS v3 base score is 6.0 out of 10.

RCE in Linux Linux_kernel

CVE-2026-8663

OS Command Injection vulnerability in Rapid7 InsightConnect RPM Plugin on Linux allows authenticated attackers to execute arbitrary OS commands via the repo, key, or name parameters due to insufficient input sanitization in shell command c…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.008 (53.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L.

Affected products

Linux Linux_kernel
Rapid7 Insightconnect_rpm
Rapid7 Insightconnect Rpm Plugin — versions 0, 1.0.2

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@rapid7.com (Product, vendor-advisory)

Frequently asked questions

What is CVE-2026-8663?: CVE-2026-8663 is a medium-severity vulnerability in Linux Linux_kernel, classified under OS Command Injection. CVSS score: 6.0/10. Published 2026-06-25.
How severe is CVE-2026-8663?: Medium severity. CVSS v3 base score is 6.0 out of 10.