CVE-2026-44237

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 v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63-8vcc	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:sangoma:freepbx:*:*:*:*:*:*:*:*

History

01 Jun 2026, 18:42

Type	Values Removed	Values Added
References	~~() https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63-8vcc -~~	() https://github.com/FreePBX/security-reporting/security/advisories/GHSA-vgjf-4h63-8vcc - Mitigation, Vendor Advisory
First Time		Sangoma freepbx Sangoma
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1
CPE		cpe:2.3:a:sangoma:freepbx::::::::

29 May 2026, 14:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-29 14:16

Updated : 2026-06-01 18:42

NVD link : CVE-2026-44237

Mitre link : CVE-2026-44237

CVE.ORG link : CVE-2026-44237

JSON object : View

Products Affected

sangoma

freepbx

CWE

CWE-1390

Weak Authentication

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