CVE-2026-21386: Observable Discrepancy

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to use consistent error responses when handling the /mute command which allows an authenticated team member to enumerate private channels they are not authorized to know about via differing error messages for nonexisten...

CVE-2018-10949

mailboxd in Zimbra Collaboration Suite 8.8 before 8.8.8; 8.7 before 8.7.11.Patch3; and 8.6 allows Account Enumeration by leveraging a Discrepancy between the "HTTP 404 - account is not active" and "HTTP 401 - must authenticate" errors...

PT-2025-34460

Name of the Vulnerable Software and Affected Versions: Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime version 3.0.0.4662 2503122283 Description: A discrepancy in the error message returned by the login function when providing incorrect credentials allows attackers to enumerate existing...

CVE-2025-55630

A discrepancy in the error message returned by the login function of Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime - firmware v3.0.0.46622503122283 when entering the wrong username and password allows attackers to enumerate existing accounts...