CVE-2026-18667 Sensor Proxy Version 1.4.2 Fixes One Vulnerability

Critical 9.3 Published Updated

Remote attackers can execute code with elevated privileges by tricking operators into connecting the sensor to a malicious host.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-18667?

CVE-2026-18667 is a critical code injection vulnerability in Tenable, Inc. Sensor Proxy, published on 3 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in Tenable Sensor Proxy allows a remote attacker to execute code with elevated privileges by inducing an operator to connect the sensor to an attacker-controlled host.

Weakness: CWE-94

Which versions are affected by CVE-2026-18667?

How do I fix CVE-2026-18667?

No fix has been published for CVE-2026-18667 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-18667 being exploited?

There is no known exploitation of CVE-2026-18667 in the wild and no public exploit code.

Sources

Also known as GHSA-24h7-mgmp-x4j6.

Is CVE-2026-18667 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free