CVE-2026-41571

CRITICALNVD 9.49.4
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-04-25. NVD baseline CVSS 9.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-27051 (ENISA EUVD) · GHSA-pxf8-6wqm-r6hh (GitHub Security Advisories)Source: ENISA EUVD

9.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.4Exploit: No code on recordExposed 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 impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity94% × 45%
Impact severity (EG Severity): CVSS 9.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
30th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.4): severity, escalated by confirmed exploitation. This CVE's 9.4 is its impact severity (EG Severity), not escalated.

EG Severity
9.4 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 4, 2026

Last Modified

October 26, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
gogithub.com/enchant97/note-mark/backend @ 0.0.0-20260417132909-dea5530cc989 (fixes < 0.0.0-20260417132909-dea5530cc989)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

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 16× in last 7d / 59× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 220 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 120 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  2. 2026-11-02 01:46 UTCEG score recompute
  3. 2026-11-02 01:46 UTCGHSA enrichmentGHSA-pxf8-6wqm-r6hh · GitHub severity CRITICAL · GitHub CVSS 9.4
  4. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  5. 2026-11-01 07:51 UTCGHSA enrichmentGHSA-pxf8-6wqm-r6hh · GitHub severity CRITICAL · GitHub CVSS 9.4
  6. 2026-11-01 07:51 UTCEG score recompute
  7. 2026-11-01 00:44 UTCEG score recompute
  8. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-10-30 23:39 UTCEG score recompute
  10. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-10-29 22:36 UTCEG score recompute
  12. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-10-28 21:33 UTCEG score recompute
  14. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  15. 2026-10-27 20:29 UTCEG score recompute
  16. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-10-26 19:26 UTCEG score recompute
  18. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  19. 2026-10-26 05:02 UTCEG score recompute
  20. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  21. 2026-10-25 14:30 UTCEG score recompute
  22. 2026-10-25 03:59 UTCEG score recompute
  23. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  24. 2026-10-24 02:56 UTCEG score recompute
  25. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 40th percentile
Show 75 more
  1. 2026-10-23 01:53 UTCEG score recompute
  2. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  3. 2026-10-22 00:47 UTCEG score recompute
  4. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  5. 2026-10-20 23:44 UTCEG score recompute
  6. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  7. 2026-10-19 22:38 UTCEG score recompute
  8. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  9. 2026-10-18 21:22 UTCEG score recompute
  10. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  11. 2026-10-18 03:41 UTCEG score recompute
  12. 2026-10-17 20:18 UTCEG score recompute
  13. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-10-16 19:13 UTCEG score recompute
  15. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  17. 2026-10-15 16:24 UTCEG score recompute
  18. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  19. 2026-10-14 10:36 UTCEG score recompute
  20. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  21. 2026-10-13 09:05 UTCEG score recompute
  22. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  23. 2026-10-12 16:08 UTCEG score recompute
  24. 2026-10-11 19:50 UTCEG score recompute
  25. 2026-10-11 17:04 UTCEG score recompute
  26. 2026-10-11 14:30 UTCEG score recompute
  27. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  28. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  29. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  30. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  31. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  32. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  33. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  34. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  35. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  36. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  37. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  38. 2026-09-30 10:47 UTCOSV refresh
  39. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  40. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  41. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  42. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  43. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  44. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  45. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  46. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  47. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  48. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  49. 2026-09-11 17:40 UTCOSV refresh
  50. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  51. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  52. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  53. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  54. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  55. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  56. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  57. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  58. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  59. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  60. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  61. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  62. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  63. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  64. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  65. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  66. 2026-08-23 21:17 UTCEG score recompute
  67. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  68. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  69. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  70. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  71. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  72. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  73. 2026-08-17 13:11 UTCEG score recompute
  74. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  75. 2026-08-16 05:03 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-41571?
CVE-2026-41571 is a critical-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-41571 published?
The CVE record for CVE-2026-41571 was published on May 4, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-41571 actively exploited?
CVE-2026-41571 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (30th 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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