CVE-2026-4837 — MEDIUM (6.6)

Vulnerability 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 Score

6.6

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-95

References

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

FAQ

What is CVE-2026-4837?

CVE-2026-4837 is a vulnerability with a CVSS score of 6.6 (MEDIUM). 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 res...

How severe is CVE-2026-4837?

CVE-2026-4837 has been rated MEDIUM with a CVSS base score of 6.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4837?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.