January 26, 2026 · Applied Cybernetics Group
CVE-2026-23760 — SmarterTools SmarterMail
known ransomware use
SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability
- Added to KEV
2026-01-26- Federal due date
2026-02-16- Vendor
- SmarterTools
- Product
- SmarterMail
- EPSS
- 99.2th percentile (score 0.817, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2026-23760
CISA short description
SmarterTools SmarterMail contains an authentication bypass using an alternate path or channel vulnerability in the password reset API. The force-reset-password endpoint permits anonymous requests and fails to verify the existing password or a reset token when resetting system administrator accounts. This could allow an unauthenticated attacker to supply a target administrator username and a new password to reset the account, resulting in full administrative compromise of the SmarterMail instance.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.