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Vulnerability record · CVE-2026-4837 · published 8 April 2026

CVE-2026-4837: Rapid7 insight agent vulnerability

Rapid7 · Insight Agent

An eval() injection vulnerability in the Rapid7 Insight Agent beaconing logic for Linux versions could theoretically allow an attacker to achieve remote code execution as root via a crafted beacon response. Because the Agent uses mutual TLS (mTLS) to verify commands from the Rapid7 Platform, it is unlikely that the eval() function could be exploited remotely without prior, highly privileged access to the backend platform.

7.2 CVSS 3.1 High EPSS 0.72% · top 47.9% CWE-95 · CWE-95
7.2CVSS 3.1 base score
0.72%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
24 Jul 2026Last modified by NVD

Description

An eval() injection vulnerability in the Rapid7 Insight Agent beaconing logic for Linux versions could theoretically allow an attacker to achieve remote code execution as root via a crafted beacon response. Because the Agent uses mutual TLS (mTLS) to verify commands from the Rapid7 Platform, it is unlikely that the eval() function could be exploited remotely without prior, highly privileged access to the backend platform.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://docs.rapid7.com/insight/release-notes-2026-april/#improvements-and-fixes Release Notes

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.5CVE-2026-6482Rapid7 insight agent inclusion from untrusted sphere vulnerabilityThe Rapid7 Insight Agent (versions > 4.1.0.2) is vulnerable to a local privilege escalation attack that allows users to gain SYSTEM level control of …EPSS 0.19%7.8CVE-2022-0237Rapid7 insight agent permissions and access controls vulnerabilityRapid7 Insight Agent versions 3.1.2.38 and earlier suffer from a privilege escalation vulnerability, whereby an attacker can hijack the flow of execu…EPSS 0.48%7.8CVE-2021-4007Rapid7 insight agent uncontrolled search path element vulnerabilityRapid7 Insight Agent, versions 3.0.1 to 3.1.2.34, suffer from a local privilege escalation due to an uncontrolled DLL search path. Specifically, when…EPSS 0.32%7.8CVE-2019-5629Rapid7 insight agent uncontrolled search path element vulnerabilityRapid7 Insight Agent, version 2.6.3 and prior, suffers from a local privilege escalation due to an uncontrolled DLL search path. Specifically, when I…EPSS 0.94%7.5CVE-2023-2273Rapid7 insight agent path traversal vulnerabilityRapid7 Insight Agent token handler versions 3.2.6 and below, suffer from a Directory Traversal vulnerability whereby unsanitized input from a CLI arg…EPSS 0.72%6.8CVE-2026-4482Rapid7 insight agent incorrect permission assignment vulnerabilityThe installer certificate files in the …/bootstrap/common/ssl folder do not seem to have restricted permissions on Windows systems (users have read a…EPSS 0.10%3.3CVE-2021-4016Rapid7 insight agent improper access control vulnerabilityRapid7 Insight Agent, versions prior to 3.1.3, suffer from an improper access control vulnerability whereby, the user has access to the snapshot dire…EPSS 0.22%9.3CVE-2026-33017Langflow build_public_tmp endpoint unauthenticated remote code executionLangflow versions prior to 1.9.0 expose the POST /api/v1/build_public_tmp/{flow_id}/flow endpoint without authentication, and when the optional data …KEVEPSS 25%analysed

Source: NIST National Vulnerability Database (record CVE-2026-4837), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.