CVE-2026-9154: GNU Sed

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Arbitrary File Write vulnerability in Rapid7 InsightConnect Sed Plugin on Linux allows authenticated attackers to write attacker-controlled content to arbitrary file paths via the expression parameter.

Affected products

• GNU Sed: version 4.2.2 only

Published 2026-06-25. Last modified 2026-06-27.