Is CVE-2026-41571 actively exploited?

No active exploitation of CVE-2026-41571 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-41571 be exploited remotely?

Yes. CVE-2026-41571 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-41571?

CVE-2026-41571 has a CVSS score of 9.4 (CRITICAL).

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CRITICAL

CVE-2026-41571

CWE-287Published: May 4, 2026· Updated: May 6, 2026

9.4

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:12.0th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-41571 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 9.4.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.