CVE-2026-75600 FreePBX: Authenticated API generatedocs Host Command Injection
Authenticated users can execute arbitrary shell commands via the GraphQL API documentation generator due to insufficient input validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-75600?
CVE-2026-75600 is a high-severity command injection vulnerability in Sangoma Freepbx, published on 28 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
FreePBX is an open source IP PBX. Prior to version 17.0.9, authenticated users who are authorized to access the GraphQL api module interface of FreePBX are able to execute arbitrary shell commands. Authenticated access to the api module is required. The PBX API module's documentation generator accepts an authenticated host parameter and uses it to build a shell command. The code path validates the generated OAuth access token before execution, but it does not validate or escape host. Compromise results in authenticated arbitrary shell command execution as the FreePBX web/PBX service user (typically asterisk.). This issue has been patched in version 17.0.9.
Weakness: CWE-78
Which versions are affected by CVE-2026-75600?
It affects 1 product.
Products include Sangoma Freepbx.
How do I fix CVE-2026-75600?
No fix has been published for CVE-2026-75600 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-2026-75600 being exploited?
There is no known exploitation of CVE-2026-75600 in the wild and no public exploit code.
Other vulnerabilities in Sangoma Freepbx
- CVE-2025-57819 Sangoma FreePBX Authentication Bypass
- CVE-2019-19006 Sangoma FreePBX Improper Authentication
- CVE-2026-73663 FreePBX: Unauthenticated SQL injection in FreePBX missedcall via inbound Caller ID name leads to administrator takeover
- CVE-2026-73665 FreePBX UCP: Unauthenticated remote code execution via socket.io namespace auth bypass and AMI action injection
- CVE-2026-46376 FreePBX: Unauthenticated Use of Hard-Coded Credentials Vulnerability in FreePBX UCP Interface
Sources
Also known as GHSA-79rg-3xp6-rqq6.