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CVE-2026-8592: Rapid7 InsightConnect AWK Plugin: OS Command Injection in process_string

CVE-2026-8592 is an OS command injection flaw in the process_string action of the Rapid7 InsightConnect AWK Plugin on Linux, as described in the record. The NVD assigns a CVSS 3.1 base score of 9.8 (critical), while the CNA lists 7.7. The affected range is listed as versions below 1.2.2, and no confirmed exploitation appears in the sources consulted.

Published Oct 13, 2026 · Updated Oct 13, 2026 · Ler em português

Overview

CVE-2026-8592 affects the process_string action of the Rapid7 InsightConnect AWK Plugin when it runs on Linux. According to the record, unsafe construction of shell commands in the processing pipeline allows remote attackers to run arbitrary operating system commands through the text or expression parameters. The weakness is classified as CWE-78 (OS Command Injection).

Impact

  • The NVD base score is 9.8 under CVSS 3.1 with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, which describes network attack vector, low complexity, no privileges and no user interaction required, with high impact on confidentiality, integrity and availability.
  • The CNA, Rapid7, lists a score of 7.7 under CVSS 3.1. Both values are reported in the record and the discrepancy is not explained there.
  • If exploited, an attacker could act with the privileges of the process running the plugin, which the record does not detail.

Affected products and versions

  • Product: Rapid7 InsightConnect AWK Plugin, on Linux.
  • Affected range in the record: versions less than 1.2.2.
  • The record does not list a specific fixed version in its fixes field. The upper bound of the range suggests 1.2.2 is the first unaffected release, but this should be confirmed with the vendor.

Exploitation status

  • The CISA KEV catalog does not list this CVE in the record, so no active exploitation can be stated from KEV data.
  • No confirmed exploitation appears in the sources consulted.

Remediation and mitigation

  • Identify all deployments of the AWK Plugin in InsightConnect and confirm their version.
  • Plan an upgrade to version 1.2.2 or later, verifying the release notes from the vendor extension page.
  • Until updated, limit network exposure of systems running the plugin and restrict which workflows or users can supply input to the affected action.
  • Apply the principle of least privilege to the service account used by the plugin.

Detection guidance

  • Review workflow execution logs for unexpected use of the process_string action with unusual input content.
  • Monitor Linux hosts running the plugin for child processes spawned by the plugin runtime that are not part of normal operation.
  • Track outbound connections or file changes originating from the plugin host as indicators of abuse.

Limitations of the available information

  • The record gives no proof of concept, no vendor advisory text beyond the product page, and no EPSS score.
  • The fixed version is not stated explicitly in the fixes field.
  • The reason for the two different CVSS scores is not documented in the record.
  • Whether the issue affects other operating systems is not stated; the record specifies Linux.

Frequently asked questions

What is CVE-2026-8592?

It is an OS command injection flaw in the process_string action of the Rapid7 InsightConnect AWK Plugin on Linux, which the record says can let remote attackers run arbitrary OS commands.

Which versions are affected?

The record lists versions less than 1.2.2 as affected. It does not explicitly name a fixed version, so confirm the fix with the vendor.

Is this vulnerability being actively exploited?

The CVE is not listed in the CISA KEV catalog in the record, and no confirmed exploitation appears in the sources consulted.

This analysis was drafted with AI assistance from verified source data and automatically checked against it.