CVE-2026-9155

OS Command Injection in Rapid7 InsightConnect Sed Plugin via expression parameter.

8.8 High

CVE-2026-9155 is a high vulnerability (CVSS 8.8) in Gnu Sed, published June 25, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. No source names a fixed version.

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.60%Up 0.7 points since Jun 25, 2026

What each source reports

CVE List Score used 8.8

OS Command Injection in Rapid7 InsightConnect Sed Plugin via expression parameter.

Record: CVE-2026-9155
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-78
Updated: 2026-11-02

EUVDEUVD-2026-39153 8.8

Record: EUVD-2026-39153
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-v3gg-5r82-j6rc 8.8

OS Command Injection vulnerability in Rapid7 InsightConnect Sed Plugin on Linux allows...

Record: GHSA-v3gg-5r82-j6rc
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-78
Updated: 2026-11-02

NVD 8.8

Record: CVE-2026-9155
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-78
Updated: 2026-11-02

Affected products

History

History
When	Changed	Sources
2026-11-02	created	CVE List, EUVD, GitHub Advisories, NVD