CVE-2026-9153 Arbitrary File Read in Rapid7 InsightConnect Sed Plugin

Medium 6.5 Published 25 Jun 2026 Updated 25 Jun 2026

Authenticated attackers can read arbitrary files on Linux systems via insufficient input validation in the expression parameter.

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-2026-9153?

CVE-2026-9153 is a medium-severity path traversal 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

Arbitrary File Read vulnerability in Rapid7 InsightConnect Sed Plugin on Linux allows authenticated attackers to read arbitrary files via the expression parameter due to insufficient input validation.

Weakness: CWE-22, CWE-200

Which versions are affected by CVE-2026-9153?

It affects 1 product.

Products include Gnu Sed.

How do I fix CVE-2026-9153?

No fix has been published for CVE-2026-9153 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-9153 being exploited?

There is no known exploitation of CVE-2026-9153 in the wild and no public exploit code.

Sources

Also known as GHSA-v6m6-hc9j-5r5w.