CVE-2026-33694 Junction File Manipulation

What is CVE-2026-33694?

CVE-2026-33694 is a high-severity path traversal vulnerability in Tenable Nessus, published on 23 Apr 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

This vulnerability allows an attacker to create a junction, enabling the deletion of arbitrary files with SYSTEM privileges. As a result, this condition potentially facilitates arbitrary code execution, whereby an attacker may exploit the vulnerability to execute malicious code with elevated SYSTEM privileges.

Weakness: CWE-59

Which versions are affected by CVE-2026-33694?

It affects 2 products.

Products include Tenable Nessus, Tenable Nessus Agent.

How do I fix CVE-2026-33694?

No fix has been published for CVE-2026-33694 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-33694 being exploited?

There is no known exploitation of CVE-2026-33694 in the wild and no public exploit code.

Other vulnerabilities in Tenable Nessus

• CVE-2022-4313 Command injection in Tenable.io, Tenable.sc and Nessus High 8.8
• CVE-2023-0524 Privilege escalation in Tenable.io, Tenable.sc, Nessus High 8.8
• CVE-2023-0101 Privilege escalation in Nessus High 8.8
• CVE-2022-32973 Privilege escalation in Nessus High 8.8
• CVE-2025-36630 Local Privilege Escalation High 8.4

All Tenable Nessus vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hjr9-62gj-chhf.