CVE-2026-41571
Critical · 9.4CVSS
9.4
EPSS
0.5%
Published
May 4, 2026
CISA due date
—
The record
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 with an empty password, so anyone who submits password: "null" to the internal login endpoint receives a valid session for that user. The bypass is unauthenticated and requires no user interaction. This issue has been patched in version 0.19.3.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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