CVE-2026-108161 FusionPBX through 5.6.5 OS Command Injection via Caller ID in Recording ZIP Download
Unauthenticated attackers can execute arbitrary commands via malicious Caller ID values when privileged users download recordings as ZIP files.
- 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-2026-108161?
CVE-2026-108161 is a high-severity command injection vulnerability in fusionpbx, published on 10 Oct 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
FusionPBX through 5.6.5 contains an OS command injection vulnerability in call_recordings::download() that allows unauthenticated attackers to execute commands by placing calls with malicious caller ID values. When the record_name filename template is enabled, attackers can embed shell metacharacters like $(...) in the Caller-ID name or number, executing commands as the web server user once a privileged user downloads multiple recordings as a ZIP.
Weakness: CWE-78
Which versions are affected by CVE-2026-108161?
How do I fix CVE-2026-108161?
No fix has been published for CVE-2026-108161 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-2026-108161 being exploited?
There is no known exploitation of CVE-2026-108161 in the wild and no public exploit code.
Sources
Also known as GHSA-9ph6-5hpm-hh94.