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Not yet scored Actively exploited Used in ransomware

CVE-2026-23760

SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability

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.

Recommended 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.

CISA remediation due date for U.S. federal agencies: 16 Feb 2026.

Collected automatically from public sources. Verify affected versions and fixes in the vendor's notice before acting.