CVE-2026-57574

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (46th 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

Also known asEUVD-2026-43041 (ENISA EUVD)Source: ENISA EUVD

7.4EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If both credentials and a TOTP code are obtained concurrently, an attacker may reuse the code to perform unauthorized actions, potentially leading to account takeover. This issue is fixed in version 2026.6.0.

CVSS
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
34
EG Risk 34/100

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)
Severity74% × 45%
Impact severity (EG Severity): CVSS 7.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
46th
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 (7.4): severity, escalated by confirmed exploitation. This CVE's 7.4 is its impact severity (EG Severity), not escalated.

EG Severity
7.4 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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 or medium mission impact; Track* at high (mission-essential systems).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 or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (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

July 10, 2026

Last Modified

October 25, 2026

Advisory Details (4)

Auto-updated Jul 10, 2026
Patch available. Sources: github_release, github, github_commit.
GitHub advisoryMentions a patch (unverified)

TOTP tokens can be reused · Advisory · misskey-dev/misskey · GitHub

https://github.com/misskey-dev/misskey/security/advisories/GHSA-2m5x-5mp6-6vpq
GitHub release Patch Available

2026.6.0

Patch available: misskey-dev/misskey 2026.6.0

https://github.com/misskey-dev/misskey/releases/tag/2026.6.0
GitHub commit Patch Available

commit d323fe00d04a (misskey-dev/misskey)

Patch available: misskey-dev/misskey 2026.6.0 (contains commit d323fe00d04a)

https://github.com/misskey-dev/misskey/commit/d323fe00d04ac46ab0b4e66fce9169effaa8dfb7
GitHub commit Patch Available

commit 00c6210a591d (misskey-dev/misskey)

Patch available: misskey-dev/misskey 2026.6.0 (contains commit 00c6210a591d)

https://github.com/misskey-dev/misskey/commit/00c6210a591db2b0be438740d05b82070fa68ac6

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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 182 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 82 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

Frequently asked(5)

What is CVE-2026-57574?
CVE-2026-57574 is a high-severity vulnerability; its CVE record was published on July 10, 2026. Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a vulnerability in Time-based One-Time Password (TOTP) authentication in UserAuthService where insufficient validation of used tokens allows the reuse of a single-use code within its valid time step. If…
When was the CVE record for CVE-2026-57574 published?
The CVE record for CVE-2026-57574 was published on July 10, 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 25, 2026; the record at its source may have been updated since.
Is CVE-2026-57574 actively exploited?
CVE-2026-57574 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57574?
CVE-2026-57574 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-57574?
A fix for CVE-2026-57574 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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