CVE-2026-41571

CRITICALNVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.4 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 78% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.4Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
9.4
EG Score
9.4CRITICALmedium confidence
EG Risk
73
EG Risk 73/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity94% × 45%
Exploitation40% × 40%
Automatability100% × 15%
EPSS PROB
0.5%
EPSS %ILE
39th
KEV
Not listed

Published

May 4, 2026

Last Modified

May 6, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
🔬 Proof of concept available. Patch available. Sources: github_release, github.
githubMentions a patch (unverified)🟡 PoC Available

OIDC-registered users authenticated by submitting password "null" · Advisory · enchant97/note-mark · GitHub

https://github.com/enchant97/note-mark/security/advisories/GHSA-pxf8-6wqm-r6hh
github_release Patch Available

V0.19.3

Patch available: enchant97/note-mark v0.19.3

https://github.com/enchant97/note-mark/releases/tag/v0.19.3

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/enchant97/note-mark/backend—
  • every version up to 0.0.0-20260417132909-dea5530cc989: fixed in 0.0.0-20260417132909-dea5530cc989
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 23× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 167 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:12 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
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  10. 2026-09-30 10:47 UTCOSV refresh
  11. 2026-09-27 13:48 UTCEPSS rescore
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  21. 2026-09-11 17:40 UTCOSV refresh
  22. 2026-09-11 14:53 UTCEPSS rescore
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  1. 2026-09-07 16:01 UTCEPSS rescore
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  5. 2026-09-01 13:53 UTCEPSS rescore
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  7. 2026-08-30 19:17 UTCEPSS rescore
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  13. 2026-08-23 21:17 UTCEG score recompute
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  20. 2026-08-17 13:11 UTCEG score recompute
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 05:03 UTCEG score recompute
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  25. 2026-08-14 03:38 UTCEG score recompute
  26. 2026-08-13 22:00 UTCEPSS rescore
  27. 2026-08-12 17:15 UTCEG score recompute
  28. 2026-08-12 13:51 UTCEPSS rescore
  29. 2026-08-11 16:08 UTCEG score recompute
  30. 2026-08-11 13:43 UTCEPSS rescore
  31. 2026-08-11 01:39 UTCEG score recompute
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  38. 2026-08-05 22:29 UTCEG score recompute
  39. 2026-08-05 19:17 UTCEPSS rescore
  40. 2026-08-04 15:10 UTCEPSS rescore
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  42. 2026-08-03 20:02 UTCEG score recompute
  43. 2026-08-03 10:36 UTCEPSS rescore
  44. 2026-08-02 05:27 UTCEG score recompute
  45. 2026-08-02 02:27 UTCEPSS rescore
  46. 2026-08-01 04:16 UTCEPSS rescore
  47. 2026-07-30 16:28 UTCEPSS rescore
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  49. 2026-07-28 15:36 UTCEPSS rescore
  50. 2026-07-27 14:13 UTCEPSS rescore
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  53. 2026-07-25 14:18 UTCEPSS rescore
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  55. 2026-07-23 14:18 UTCEPSS rescore
  56. 2026-07-23 03:11 UTCEG score recompute
  57. 2026-07-22 14:08 UTCEPSS rescore
  58. 2026-07-20 23:02 UTCOSV refresh
  59. 2026-07-20 17:08 UTCEPSS rescore
  60. 2026-07-19 14:31 UTCEPSS rescore
  61. 2026-07-19 02:29 UTCEPSS rescore
  62. 2026-07-18 10:04 UTCEPSS rescore
  63. 2026-07-16 17:03 UTCEPSS rescore
  64. 2026-07-15 16:57 UTCEPSS rescore
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  71. 2026-07-11 08:27 UTCEPSS rescore
  72. 2026-07-09 19:10 UTCEPSS rescore
  73. 2026-07-07 13:46 UTCEPSS rescore
  74. 2026-07-06 16:27 UTCEPSS rescore
  75. 2026-07-06 16:27 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2026-41571?
CVE-2026-41571 is a critical vulnerability published on May 4, 2026. 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:…
When was CVE-2026-41571 disclosed?
CVE-2026-41571 was first published on May 4, 2026, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-41571 actively exploited?
CVE-2026-41571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (39th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41571?
CVE-2026-41571 has a CVSS v3 base score of 9.4 (NVD).
How do I remediate CVE-2026-41571?
A fix for CVE-2026-41571 is available: update to the fixed version the vendor names in its advisory.

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