CVE-2026-8811
High
Description
SEPPmail versions before 15.0.5 allow improper handling of attachment filenames during encrypted PDF generation. An attacker can exploit this to create new files outside the intended directory, potentially placing files in web-accessible locations.
SeverityHigh
CVSS7.1
Exploit probability—
ProductSecure Email Gateway
PublishedJun 18, 2026
First seenJun 18, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- SEPPmail AG Secure Email Gateway15.0.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| SEPPmail AG Secure Email Gateway | v < 15.0.5 | 15.0.5 |
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