SB2026030359 - Authenticated path traversal in Tenable Nessus Manager



SB2026030359 - Authenticated path traversal in Tenable Nessus Manager

Published: March 3, 2026

Security Bulletin ID SB2026030359
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Path traversal (CVE-ID: CVE-2026-3493)

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in Nessus Manager. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.


Remediation

Install update from vendor's website.