CVE-2026-8663Network attack vector

Authenticated command execution via unsanitized shell parameters

Published Jun 24, 2026 · Updated Jun 25, 2026

OS command injection in Rapid7 InsightConnect RPM Plugin before 1.0.2 on Linux allows remote authenticated users to execute arbitrary commands. The plugin inserts the repo, key, or name parameter into shell command construction without sufficient input sanitization, allowing shell metacharacters to alter the invoked command. A highly privileged InsightConnect user can trigger the affected action over the network, gaining command execution inside the Linux plugin environment and access to its available data and privileges.

CVSS severity6.0
Medium
EPSS probability1.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Rapid7 InsightConnect RPM Plugin before 1.0.2 on Linux allows remote authenticated users to execute arbitrary commands. The plugin inserts the repo, key, or name parameter into shell command construction without sufficient input sanitization, allowing shell metacharacters to alter the invoked command. A highly privileged InsightConnect user can trigger the affected action over the network, gaining command execution inside the Linux plugin environment and access to its available data and privileges.

The record

CVE
CVE-2026-8663
Published
Jun 24, 2026
Updated
Jun 25, 2026
Vendor
Rapid7
Product
InsightConnect RPM Plugin
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Rapid7 · InsightConnect RPM Pluginversion=0 <1.0.2

Published CVSS scores

6.0Rapid7, Inc.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:L
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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