CVE-2026-4837
MediumCVSS 6.6Exploitation Probability (EPSS)
Low risk34th percentile - higher than 34% of all known CVEs
Summary
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, exploitation is unlikely without prior, highly privileged access to the backend platform.
Risk Assessment
Risk of remote code execution with root privileges, but requires privileged access to the Rapid7 platform. Nevertheless, the vulnerability poses a serious threat.
Recommendation
Update Rapid7 Insight Agent to the latest version. Restrict access to the backend platform and monitor beacon responses.
Other vulnerabilities in Rapid7 Insight Agent
See all- CVE-2026-115805High
Improper handling of local filesystem paths in Rapid7 Insight Agent on Linux and macOS may allow authenticated local users to gain elevated privileges. Exploitation requires existing local access and depends on the Agent's inventory collection processing the crafted path.
- CVE-2026-89325High
An uncontrolled search path element in InsightVM assessment content in Rapid7 Insight Agent on Windows allows a local, low-privileged user to execute arbitrary code as SYSTEM via a planted executable resolved from the machine PATH. Assessment content at or below version 0.0.261.0 invoked the `code` command without a fully qualified path from a SYSTEM process, resolving it against the machine PATH. The issue was resolved in assessment content version 0.0.269.0, released September 15, 2026, and remediation was deployed automatically.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS