CVE-2026-7864: Seppmail AG Secure Email Gateway

Medium severity, CVSS 6.9. EPSS: 0.5% chance of exploitation in the next 30 days.

SEPPmail Secure Email Gateway before version 15.0.4 exposes server environment variables through an unauthenticated endpoint in the new GINA UI, allowing remote attackers to obtain sensitive system information.

Affected products

• Seppmail AG Secure Email Gateway: before 15.0.4 (fixed in 15.0.4)

Published 2026-05-08. Last modified 2026-06-17.