CVE-2026-72588
bluewave-labs Checkmate - User Enumeration via Differential HTTP Response in Password Recovery
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
A user enumeration vulnerability in bluewave-labs/Checkmate through 2.1.0 allows an unauthenticated remote attacker to determine whether a given email address is registered. The POST /api/v1/auth/recovery/request endpoint returns HTTP 200 for registered email addresses and a different status code for unregistered ones, enabling attackers to enumerate valid user accounts.
| CWE | CWE-204 |
| Vendor | bluewave-labs |
| Product | checkmate |
| Published | Aug 10, 2026 |
| Last Updated | Aug 10, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
bluewave-labs / Checkmate
0 ≤ 2.1.0
Credits
Kamron Rasuljonov