Findings

CVE-2026-29138

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.

Published Apr 2, 2026 · updated Jun 17, 2026 · seppmail secure email gateway

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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 2, 2026 · NIST NVD

    Detected

    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.

  2. Jun 17, 2026 · NIST NVD

    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

  • cpe seppmail/secure email gatewayversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-29138

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-29138

    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.

    nvd.nist.gov

References