CVE-2026-29131: SEPPmail Secure Email Gateway before version 15.0.3 allows attackers with a specially crafted email address to read…
CVE-2026-29131 · Severity: high · CVSS 7.5 · Published 2026-04-02
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-29131 being exploited in the wild.
How severe is CVE-2026-29131?
High severity, with a CVSS score of 7.5, published 2 April 2026.
Which products and versions are affected?
Seppmail Secure Email Gateway. The advisory does not name versions.
Is there a fix for CVE-2026-29131?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-29131?
Check whether you run Seppmail Secure Email Gateway. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.