What is CVE-2026-72588?

CVE-2026-72588 is a medium-severity vulnerability in Bluewave-labs Checkmate, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2026-08-10.

How severe is CVE-2026-72588?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Bluewave-labs Checkmate

CVE-2026-72588

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…

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Bluewave-labs Checkmate — versions 0

Weakness classification (CWE)

CWE-204 — Observable Response Discrepancy

References

309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c (third-party-advisory)

Frequently asked questions

What is CVE-2026-72588?: CVE-2026-72588 is a medium-severity vulnerability in Bluewave-labs Checkmate, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2026-08-10.
How severe is CVE-2026-72588?: Medium severity. CVSS v3 base score is 5.3 out of 10.