Vulnerability Description
FreePBX is an open source IP PBX. Prior to 17.0.8, the FreePBX api module's OAuth2 implementation does not sufficiently validate client credentials during token issuance. Knowledge of a valid client_id is required. The validateClient() method in ClientRepository.php unconditionally returns true, allowing any party with knowledge of a valid client_id to obtain OAuth2 access tokens without providing the correct client_secret. This vulnerability is fixed in 17.0.8.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Sangoma | Freepbx | < 17.0.8 |
Related Weaknesses (CWE)
References
- https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63MitigationVendor Advisory
FAQ
What is CVE-2026-44237?
CVE-2026-44237 is a vulnerability with a CVSS score of 8.1 (HIGH). FreePBX is an open source IP PBX. Prior to 17.0.8, the FreePBX api module's OAuth2 implementation does not sufficiently validate client credentials during token issuance. Knowledge of a valid client_i...
How severe is CVE-2026-44237?
CVE-2026-44237 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-44237?
Check the references section above for vendor advisories and patch information. Affected products include: Sangoma Freepbx.