CVE-2026-9155 OS Command Injection in Rapid7 InsightConnect Sed Plugin via expression parameter.
Authenticated attackers can execute arbitrary OS commands on Linux systems via the expression parameter in the Rapid7 InsightConnect Sed Plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9155?
CVE-2026-9155 is a high-severity command injection vulnerability in Rapid7 InsightConnect Sed Plugin, published on 25 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OS Command Injection vulnerability in Rapid7 InsightConnect Sed Plugin on Linux allows authenticated attackers to execute arbitrary OS commands via the expression parameter due to insufficient input validation.
Weakness: CWE-78
Which versions are affected by CVE-2026-9155?
It affects 1 product.
Products include Gnu Sed.
How do I fix CVE-2026-9155?
No fix has been published for CVE-2026-9155 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-2026-9155 being exploited?
There is no known exploitation of CVE-2026-9155 in the wild and no public exploit code.
Other vulnerabilities in Rapid7 InsightConnect Sed Plugin
Sources
Also known as GHSA-v3gg-5r82-j6rc.