CVE-2026-8658 OS Command Injection in Rapid7 InsightConnect Tcpdump Plugin
Authenticated attackers can execute arbitrary OS commands in Rapid7 InsightConnect via the Tcpdump plugin due to insufficient input sanitization.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-8658?
CVE-2026-8658 is a medium-severity command injection vulnerability in Rapid7 InsightConnect Tcpdump Plugin, published on 25 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
OS Command Injection vulnerability in Rapid7 InsightConnect Tcpdump Plugin on Linux allows authenticated attackers to execute arbitrary OS commands via the options or filter parameters due to insufficient input sanitization in shell command construction.
Weakness: CWE-78
Which versions are affected by CVE-2026-8658?
It affects 1 product.
Products include Rapid7 Insightconnect Tcpdump.
How do I fix CVE-2026-8658?
No fix has been published for CVE-2026-8658 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-8658 being exploited?
There is no known exploitation of CVE-2026-8658 in the wild and no public exploit code.
Sources
Also known as GHSA-jpr4-h957-w6xg.