Description
SEPPmail Secure Email Gateway before 15.0.6 deserializes attacker-controlled data in a privileged REST import workflow without adequate validation. An attacker with a privileged API token can execute arbitrary commands with "nobody" privileges.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SEPPmail | SEPPmail Secure Email Gateway (SEG) | < 15.0.6 | 15.0.6 |
Advisories 1
- WID-SEC-2026-3178 SEPPmail Secure E-Mail Gateway: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 3, 2026