CVE-2026-9592

High

Description

SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session in the GINA web portal, as the session token is disclosed inside the URL and a HTTP header.

SeverityHigh
CVSS7.5
Exploit probability—
ProductSecure Email Gateway
PublishedJul 17, 2026
First seenJul 17, 2026
Weakness typeCWE-598CWE-598

How to fix

Update
  • SEPPmail Secure Email Gateway15.0.4.2 or later
  • SEPPmail Cloud15.0.4.2 or later

Affected products

ProductAffected versionsFixed in
SEPPmail Secure Email GatewayNo range specified15.0.4.2
SEPPmail CloudNo range specified15.0.4.2

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