CVE-2026-29138
High
Description
SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to claim another user's PGP signature as their own.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSeppmail Secure Email Gateway
PublishedApr 2, 2026
First seenApr 2, 2026
Weakness typeCWE-90CWE-90
How to fix
Update
- seppmail secure_email_gateway15.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| seppmail secure_email_gateway | v < 15.0.3 | 15.0.3 |
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