Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability

Trend Micro Apex One

Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. Added to CISA KEV on 2026-05-21 (federal deadline 2026-06-04).

First seen: 21 May 2026
Last update: 21 May 2026, 12:00 UTC
Identifiers: CVE-2026-34926
Source: CISA KEV

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Trend Micro Apex One (On-Premise) Directory Traversal Vulnerability
Severity: high, exploited in the wild. Patch status: patched.
Affected: Trend Micro Apex One
Ids: CVE-2026-34926

Trend Micro Apex One (on-premise) contains a directory traversal vulnerability that could allow a pre-authenticated local attacker to modify a key table on the server to inject malicious code to deploy to agents on affected installations. Added to CISA KEV on 2026-05-21 (federal deadline 2026-06-04).

## Steps
1. Search the repo, its CI and infra config for Trend Micro Apex One. If present, report the version in use and whether it's affected.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve("CVE-2026-34926") for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://nvd.nist.gov/vuln/detail/CVE-2026-34926 https://success.trendmicro.com/en-US/solution/KA-0023430
https://pwned.coffee/i/trend-micro-apex-one-on-premise-directory-traversal-vuln-cve-2026-34926

Sources

Totalone hot coffee