CVE-2026-7864 PUBLISHED

Exposure of Sensitive Information to an Unauthorized Actor

Assigner: NCSC.ch
Reserved: 05.05.2026 Published: 08.05.2026 Updated: 08.05.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	SEPPmail AG
Product	Secure Email Gateway
Versions	Default: unaffected affected from 0 to 15.0.4 (excl.)

References

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#security

Problem Types

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

Impacts

CAPEC-37 Retrieve Embedded Sensitive Data