The Issabel Framework, the web framework supporting Issabel PBX software, before commit b97dbaf contains a hard-coded HS256 JWT signing key in the pbxapi index.php file that is identical across every installation, allowing unauthenticated remote attackers to forge valid bearer tokens. Attackers can use the forged token to call the manager originate endpoint with the System application parameter, causing Asterisk to execute arbitrary OS commands as the Asterisk user. Exploitation evidence was first observed by the Shadowserver Foundation on 2026-09-09.
Metrics
Affected Vendors & Products
References
History
Thu, 17 Sep 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Issabel Foundation
Issabel Foundation issabel Framework |
|
| Vendors & Products |
Issabel Foundation
Issabel Foundation issabel Framework |
|
| Metrics |
ssvc
|
Tue, 15 Sep 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The Issabel Framework, the web framework supporting Issabel PBX software, before commit b97dbaf contains a hard-coded HS256 JWT signing key in the pbxapi index.php file that is identical across every installation, allowing unauthenticated remote attackers to forge valid bearer tokens. Attackers can use the forged token to call the manager originate endpoint with the System application parameter, causing Asterisk to execute arbitrary OS commands as the Asterisk user. Exploitation evidence was first observed by the Shadowserver Foundation on 2026-09-09. | |
| Title | Issabel Framework Hard-coded JWT Key RCE via pbxapi/manager/originate | |
| Weaknesses | CWE-321 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-15T16:41:39.363Z
Updated: 2026-09-17T19:27:44.069Z
Reserved: 2026-09-10T16:23:54.471Z
Link: CVE-2026-89026
Updated: 2026-09-17T19:18:09.739Z
Status : Deferred
Published: 2026-09-15T17:17:33.510
Modified: 2026-09-24T21:08:55.030
Link: CVE-2026-89026
No data.