CVE-2026-7807: SmarterTools SmarterMail

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

SmarterTools SmarterMail builds prior to 9560 contain a local file inclusion vulnerability in the /api/v1/report/summary/{type} API endpoint that allows authenticated users to read arbitrary .json files on the system. Attackers can exploit this vulnerability combined with weak encryption algorithms and hardcoded keys to decrypt and access stored passwords and 2FA secrets for all users.

Affected products

• SmarterTools SmarterMail: before 100.0.9560 (fixed in 100.0.9560)

Published 2026-05-08. Last modified 2026-06-17.