CVE-2026-8660: OS Command Injection in Rapid7 InsightConnect Ping Plugin

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-25 · updated 2026-10-25
Weakness: CWE-78

Description

OS Command Injection vulnerability in the ping action of Rapid7 InsightConnect Ping Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host parameter due to insufficient input validation when constructing shell commands.

Affected products

Rapid7 InsightConnect Ping Plugin: before 1.0.4 — fixed in 1.0.4

How to fix

Upgrade to a fixed version: Rapid7 InsightConnect Ping Plugin 1.0.4. Check the vendor advisory for mitigations.

References

https://extensions.rapid7.com/extension/ping

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