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.
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This medium-severity CVE scores 6.9 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 74% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
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.
May 8, 2026
May 18, 2026
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-7864
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