Improper input validation in Seppmail Secure Email Gateway

CVE-2026-29137

SEPPmail Secure Email Gateway before version 15.0.3 allows an attacker to hide security tags from users by crafting a long subject.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.001 (17.4th percentile) — read the EPSS interpretation.