CVE-2026-46649

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (43rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-84171 (ENISA EUVD)Source: ENISA EUVD

9.1EG
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: 0.5%CVSS: 9.1Exploit: No code on recordExposed services: Not assessed

The CVE record names the fixed release — apply it.

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Server's GET /api/login_with_code/:id endpoint accepts a nine-digit SSO authentication code with a ten-minute lifetime without applying limiterLoginBruteForce. An unauthenticated attacker who targets a user during an active SSO login can make unlimited guesses, and a correct code returns a full session token that permits access to and modification of the user's notes, notebooks, and account settings. This issue is fixed in version 3.7.2.

CVSS
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
57
EG Risk 57/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 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.
Automatability0% × 15%
CISA's SSVC Automatable value: no (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 no (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: The CVE record names the fixed release. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
43rd
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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: 14 days if the affected system is publicly exposed; Fix on system upgrade 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.

The CVE record names the fixed release. 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 no (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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

September 21, 2026

Last Modified

September 28, 2026

Advisory Details (4)

Auto-updated Sep 21, 2026
Fix named in the CVE record. Sources: github, github_pr, github_commit.
Web page

GitHub - laurent22/joplin at v3.7.2 · GitHub

https://github.com/laurent22/joplin/tree/v3.7.2
GitHub commit

commit fd8c1fb53f98 (laurent22/joplin)

Fix landed in laurent22/joplin commit fd8c1fb53f98 — awaiting tagged release

https://github.com/laurent22/joplin/commit/fd8c1fb53f98f689e846dc164e39f307f09b684d
GitHub pull request

Server: Add rate limiter on SAML auth code endpoint

Fix merged in laurent22/joplin PR #15433 on 2026-05-15 — awaiting tagged release

https://github.com/laurent22/joplin/pull/15433
GitHub advisoryMentions a patch (unverified)

SSO Auth Code Login Missing Rate Limiting — 9-Digit Numeric Code Brute-Forceable via Unprotected Endpoint · Advisory · laurent22/joplin · GitHub

https://github.com/laurent22/joplin/security/advisories/GHSA-6vwc-4hrg-qp5h

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 31× 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 its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 112 rows 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 12 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 02:56 UTCEchelonGraph re-scored
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  3. 2026-11-12 03:17 UTCEchelonGraph re-scored
  4. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  5. 2026-11-11 03:38 UTCEchelonGraph re-scored
  6. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  7. 2026-11-10 03:58 UTCEchelonGraph re-scored
  8. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-11-09 04:19 UTCEchelonGraph re-scored
  10. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-11-08 04:31 UTCEchelonGraph re-scored
  12. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  13. 2026-11-07 04:51 UTCEchelonGraph re-scored
  14. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-11-06 09:55 UTCOSV refresh
  16. 2026-11-06 05:12 UTCEchelonGraph re-scored
  17. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-11-05 05:33 UTCEchelonGraph re-scored
  19. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-11-04 05:54 UTCEchelonGraph re-scored
  21. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-11-03 06:15 UTCEchelonGraph re-scored
  23. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  24. 2026-11-02 06:34 UTCEchelonGraph re-scored
  25. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
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  1. 2026-11-01 06:54 UTCEchelonGraph re-scored
  2. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  3. 2026-10-31 07:15 UTCEchelonGraph re-scored
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  5. 2026-10-30 07:35 UTCEchelonGraph re-scored
  6. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-10-29 07:56 UTCEchelonGraph re-scored
  8. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  9. 2026-10-28 08:16 UTCEchelonGraph re-scored
  10. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-27 08:25 UTCEchelonGraph re-scored
  12. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-26 06:35 UTCEchelonGraph re-scored
  14. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-25 14:25 UTCEchelonGraph re-scored
  16. 2026-10-25 06:56 UTCEchelonGraph re-scored
  17. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-24 07:17 UTCEchelonGraph re-scored
  19. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-10-23 07:38 UTCEchelonGraph re-scored
  21. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  22. 2026-10-22 07:56 UTCEchelonGraph re-scored
  23. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-21 08:16 UTCEchelonGraph re-scored
  25. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  26. 2026-10-20 08:36 UTCEchelonGraph re-scored
  27. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  28. 2026-10-19 08:55 UTCEchelonGraph re-scored
  29. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  30. 2026-10-18 03:36 UTCEchelonGraph re-scored
  31. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  32. 2026-10-17 07:14 UTCEchelonGraph re-scored
  33. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  34. 2026-10-16 07:33 UTCEchelonGraph re-scored
  35. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  36. 2026-10-15 06:27 UTCEchelonGraph re-scored
  37. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  38. 2026-10-14 02:07 UTCEchelonGraph re-scored
  39. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  40. 2026-10-12 22:25 UTCEchelonGraph re-scored
  41. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  42. 2026-10-12 16:02 UTCEchelonGraph re-scored
  43. 2026-10-11 19:45 UTCEchelonGraph re-scored
  44. 2026-10-11 16:59 UTCEchelonGraph re-scored
  45. 2026-10-11 14:25 UTCEchelonGraph re-scored
  46. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  47. 2026-10-11 13:10 UTCEchelonGraph re-scored
  48. 2026-10-10 23:44 UTCEchelonGraph re-scored
  49. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  50. 2026-10-09 22:06 UTCEchelonGraph re-scored
  51. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  52. 2026-10-08 17:18 UTCEchelonGraph re-scored
  53. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  54. 2026-10-08 02:57 UTCEchelonGraph re-scored
  55. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  56. 2026-10-06 17:05 UTCEchelonGraph re-scored
  57. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  58. 2026-10-05 20:11 UTCEchelonGraph re-scored
  59. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  60. 2026-10-05 03:16 UTCEchelonGraph re-scored
  61. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  62. 2026-10-03 17:36 UTCEchelonGraph re-scored
  63. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  64. 2026-10-02 20:40 UTCEchelonGraph re-scored
  65. 2026-10-01 22:46 UTCEchelonGraph re-scored
  66. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  67. 2026-09-30 17:18 UTCEchelonGraph re-scored
  68. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  69. 2026-09-29 18:18 UTCEchelonGraph re-scored
  70. 2026-09-29 01:28 UTCEchelonGraph re-scored
  71. 2026-09-28 21:18 UTCEchelonGraph re-scored
  72. 2026-09-28 20:26 UTCEchelonGraph re-scored
  73. 2026-09-28 16:28 UTCEchelonGraph re-scored
  74. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 44th percentile
  75. 2026-09-27 15:22 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-46649?
CVE-2026-46649 is a critical-severity vulnerability; its CVE record was published on September 21, 2026. Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.2, Joplin Server's GET /api/login_with_code/:id endpoint accepts a nine-digit SSO authentication code with a ten-minute lifetime without applying limiterLoginBruteForce. An…
When was the CVE record for CVE-2026-46649 published?
The CVE record for CVE-2026-46649 was published on September 21, 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 September 28, 2026; the record at its source may have been updated since.
Is CVE-2026-46649 actively exploited?
CVE-2026-46649 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-46649?
CVE-2026-46649 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-46649?
The CVE record for CVE-2026-46649 names the fix: "This issue is fixed in version 3.7.2."

Dependency Blast Radius

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