CVE-2026-44237

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.

PUBLISHED Reserved 2026-05-05 | Published 2026-05-29 | Updated 2026-05-30 | Assigner GitHub_M

Problem types

CWE-1390: Weak Authentication

Product status

References

github.com/...orting/security/advisories/GHSA-vgjf-4h63-8vcc

cve.org (CVE-2026-44237)

nvd.nist.gov (CVE-2026-44237)

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