SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2026-8666

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…

CRITICAL 9.8EPSS 1.20%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.20% probability · 66th percentile
CISA KEV
Not listed
Weakness
CWE-78
Affected
rapid7/insightconnect traceroute
Source
cve@rapid7.com

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.