CVE-2026-7864

Exposure of Sensitive Information to an Unauthorized Actor

State: Published
Severity: 6.9 Medium
Published: May 8, 2026
Updated: May 18, 2026
Reserved: May 5, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	NCSC.ch

Weaknesses

CWE-497 Exposure of sensitive system information to an unauthorized control sphere

Affected Products

Product	Versions
Secure Email GatewaySEPPmail AG	before 15.0.4Affected

References

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

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