CVE-2026-7864

UNKNOWN 0.0

Exposure of Sensitive Information to an Unauthorized Actor

CVSS Score

0.0

EPSS Score

0.2%

EPSS Percentile

41th

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.

CWE	CWE-497
Vendor	seppmail ag
Product	secure email gateway
Published	May 8, 2026
Last Updated	May 18, 2026

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Affected Versions

SEPPmail AG / Secure Email Gateway

0 < 15.0.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

downloads.seppmail.com: https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#security labs.infoguard.ch: https://labs.infoguard.ch/posts/seppmail_secure_e-mail_gateway_rce_vulnerabilities_cve-2026-2743_cve-2026-7864_cve-2026-44127_cve-2026-44128/

Credits

Dario Weiss of InfoGuard Labs