CVE-2026-34007 Command injection in Notes Station 3
Remote attackers can execute arbitrary commands via unsanitized X-Forwarded-For headers in QNAP Notes Station 3.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-34007?
CVE-2026-34007 is a medium-severity command injection vulnerability in QNAP Systems Inc. Notes Station 3, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An OS command injection vulnerability has been reported to affect Notes Station 3. If exploited, the vulnerability could allow remote attackers to execute arbitrary commands.
We have already fixed the vulnerability in the following version: Notes Station 3 3.9.11 and later
Weakness: CWE-78
Which versions are affected by CVE-2026-34007?
How do I fix CVE-2026-34007?
No fix has been published for CVE-2026-34007 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-34007 being exploited?
There is no known exploitation of CVE-2026-34007 in the wild and no public exploit code.
Sources
Also known as GHSA-j4jp-vhm8-8q35.