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Vulnerability record · CVE-2026-8666 · published 25 June 2026

CVE-2026-8666: Rapid7 insightconnect traceroute os command injection vulnerability

Rapid7 · Insightconnect Traceroute

OS Command Injection vulnerability in the traceroute action of Rapid7 InsightConnect Traceroute Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host, port, max_ttl, count, or time_out request parameters due to insufficient input validation when constructing shell commands.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 33.1% CWE-78 · OS command injection
9.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
29 Jun 2026Last modified by NVD

Description

OS Command Injection vulnerability in the traceroute action of Rapid7 InsightConnect Traceroute Plugin on Linux allows remote attackers to execute arbitrary OS commands via the host, port, max_ttl, count, or time_out request parameters due to insufficient input validation when constructing shell commands.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://extensions.rapid7.com/extension/traceroute Product

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Source: NIST National Vulnerability Database (record CVE-2026-8666), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.