CVE-2026-41571CRITICAL 9.4EPSS p21.1%

CVE-2026-41571CVE-2026-41571

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.

Scoring

CVSS 3.19.4 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS0.30% probability of exploitation · percentile 21.1% · 2026-06-19T12:03:05Z
Published2026-05-04
Last modified2026-05-06

Underlying weaknesses· 1

CWE-287

References

  1. https://github.com/enchant97/note-mark/releases/tag/v0.19.3
  2. https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh
  3. https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh

1

TypeTargetConfidenceTier
WeaknessImproper Authenticationcwe-2870%live

Related by meaning· 6

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.