CVE-2026-29131

HIGH

SEPPmail Secure Email Gateway - PGP Decryption Recipient LDAP Injection

Title source: manual

Description

SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to read the contents of emails encrypted for other users.

References (1)

Core 1

Core References

Release Notes release-notes

https://downloads.seppmail.com/extrelnotes/150/ERN15.0.html#seppmail-vulnerability-disclosure-1503

Scores

CVSS v3 7.5

EPSS 0.0023

EPSS Percentile 13.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-90

Status published

Products (2)

SEPPmail/Secure Email Gateway < 15.0.3

seppmail/secure_email_gateway < 15.0.3

Published Apr 02, 2026

Tracked Since Apr 02, 2026