CVE-2026-29138: PGP Decryption Sender LDAP Injection
Published Apr 2, 2026
·Updated
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.
Affected Software
2 affected components
SEPPmail SEPPmail Secure Email Gateway<15.0.3
SEPPmail Secure Email Gateway<15.0.3
Event History
Apr 2, 2026
CVE Published
via MITRE·08:47 AM
Data Sourced
via MITRE·08:47 AM
DescriptionWeakness
Data Sourced
via NVD·09:16 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-29138?
CVE-2026-29138 is considered a critical vulnerability due to the potential for identity deception in PGP signatures.
2
How do I fix CVE-2026-29138?
To fix CVE-2026-29138, upgrade your SEPPmail Secure Email Gateway to version 15.0.3 or later.
3
Who is affected by CVE-2026-29138?
Organizations using SEPPmail Secure Email Gateway versions before 15.0.3 are impacted by CVE-2026-29138.
4
What type of attack does CVE-2026-29138 enable?
CVE-2026-29138 enables LDAP injection attacks, allowing malicious users to impersonate others.
5
Is there a workaround for CVE-2026-29138?
No official workaround is provided for CVE-2026-29138; upgrading is the recommended action.