Relative Path Traversal in Apex One - CVE-2026-34926
Published: May 22, 2026
Vulnerability identifier: #VU132106
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2026-34926
CWE-ID: CWE-23
Exploitation vector: Local access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: Trend Micro
Affected software:
Apex One
Apex One
Detailed vulnerability description
The vulnerability allows a local privileged user to inject malicious code for deployment to agents.
The vulnerability exists due to path traversal in the Apex One server when accessing server directories. A local privileged user can modify a key table on the server to inject malicious code for deployment to agents.
This issue is only exploitable on on-premise Apex One installations.
Note, the vulnerability is being actively exploited in the wild.
How to mitigate CVE-2026-34926
Install security update from vendor's website.