# CVE-2026-72588

## Summary

- **CVE ID:** CVE-2026-72588
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **CWE:** CWE-204
- **Published:** Aug 10, 2026
- **Last Modified:** Aug 10, 2026

## Description

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.

## Affected Products

- bluewave-labs — Checkmate (0)

## References

- [CNA](https://github.com/bluewave-labs/Checkmate)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.25%
- **EPSS Percentile:** 16.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._