CVE-2026-9155
OS Command Injection in Rapid7 InsightConnect Sed Plugin via expression parameter.
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.
INFO
Published Date :
June 25, 2026, 1:16 a.m.
Last Modified :
June 27, 2026, 7:24 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 9974b330-7714-4307-a722-5648477acda7 | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Rapid7 InsightConnect Sed Plugin.
- Ensure proper input validation for the expression parameter.
- Restrict command execution capabilities where possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-9155.
| URL | Resource |
|---|---|
| https://extensions.rapid7.com/extension/sed | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-9155 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-9155
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9155 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9155 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 27, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:a:gnu:sed:4.2.2:*:*:*:*:*:*:* OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Added Reference Type Rapid7, Inc.: https://extensions.rapid7.com/extension/sed Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 25, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-9155', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-06-25T12:37:43.193849Z'} -
New CVE Received by [email protected]
Jun. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Rapid7', 'product': 'InsightConnect Sed Plugin', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.0.5', 'versionType': 'custom'}, {'status': 'unaffected', 'version': '2.0.5', 'versionType': 'custom'}], 'platforms': ['Linux'], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-78 Added Reference https://extensions.rapid7.com/extension/sed