Auth bypass in Enchant97 Note-mark

CVE-2026-41571

Note Mark is an open-source note-taking application. In version 0.19.2, IsPasswordMatch in backend/db/models.go falls back to a hard-coded bcrypt("null") placeholder whenever a user has no stored password. OIDC-registered users are created…

Vulnerability class: Broken Authentication

EPSS: 0.001 (16.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-41571?
CVE-2026-41571 is a critical-severity vulnerability in Enchant97 Note-mark, classified under Improper Authentication. CVSS score: 9.4/10. Published 2026-05-04.
How severe is CVE-2026-41571?
Critical severity. CVSS v3 base score is 9.4 out of 10.