CVE-2026-34492 Airwall - Arbitrary file read
Attackers can read arbitrary files from Johnson Controls Airwall devices due to external control of file paths.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-34492?
CVE-2026-34492 is a high-severity path traversal vulnerability in Johnson Controls Airwall, published on 14 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
External control of file name or path vulnerability in Johnson Controls Airwall allows : File Manipulation.
This issue affects Airwall: before 4.1.
Weakness: CWE-73
Which versions are affected by CVE-2026-34492?
How do I fix CVE-2026-34492?
No fix has been published for CVE-2026-34492 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-2026-34492 being exploited?
There is no known exploitation of CVE-2026-34492 in the wild and no public exploit code.
Sources
Also known as GHSA-m967-cmwg-4q9m.