Arbitrary File Write in Rapid7 InsightConnect Sed Plugin

Publication date: 2026-06-25

Last updated on: 2026-06-27

Assigner: Rapid7, Inc.

Description

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-25

Last Modified

2026-06-27

Generated

2026-07-15

AI Q&A

2026-06-25

EPSS Evaluated

2026-07-14

NVD

CVE-2026-9154

EUVD

EUVD-2026-39154

Affected Vendors & Products

Vendor	Product	Version / Range
gnu	sed	4.2.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This vulnerability is an Arbitrary File Write issue in the Rapid7 InsightConnect Sed Plugin on Linux. It allows authenticated attackers to write content they control to any file path on the system by exploiting the expression parameter.

Impact Analysis

The vulnerability can impact you by allowing an attacker with authentication to modify or create files anywhere on the system. This can lead to integrity issues, such as altering important files or injecting malicious content, potentially disrupting system operations or enabling further attacks.

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