CVE-2026-70590

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (23rd percentile of EPSS-scored CVEs). 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, secondary
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ghost is a Node.js content management system. Prior to 6.54.1, any staff-level user was able to leak the hashed passwords of other staff users through the Ghost Admin API. An offline password-guessing attack against the hashes could lead to account takeover if successful, but Device Verification should have prevented an attacker from logging in with a recovered password. Depending on the database used, leaked hashes may not have had the correct casing for all characters, increasing the difficulty of a password-guessing attack. This issue is fixed in version 6.54.1.

CVSS v3
4.8
EG Score
4.8MEDIUMmedium confidence
EG Risk
22
EG Risk 22/100CISA SSVC

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
Severity48% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
23rd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 4, 2026

Last Modified

September 8, 2026

Advisory Details (4)

Auto-updated Aug 4, 2026
Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

v6.54.1

Patch available: TryGhost/Ghost v6.54.1

https://github.com/TryGhost/Ghost/releases/tag/v6.54.1
github_commit Patch Available

commit 63c31fad7e47 (TryGhost/Ghost)

Patch available: TryGhost/Ghost v6.54.1 (contains commit 63c31fad7e47)

https://github.com/TryGhost/Ghost/commit/63c31fad7e473caa62d8fbb4651a04a2a62b5d00
github_pr Patch Available

Applied NQL transformer functions to more APIs.

Patch available: TryGhost/Ghost v6.54.1 (PR #29628 merged 2026-07-27)

https://github.com/TryGhost/Ghost/pull/29628
github Patch Available

Blind Password Hash Disclosure in Ghost Admin API · Advisory · TryGhost/Ghost · GitHub

https://github.com/TryGhost/Ghost/security/advisories/GHSA-jm22-3w23-5q7w

Vendor Advisories for CVE-2026-70590(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
ghost—
  • every version up to 6.54.1: fixed in 6.54.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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.

  1. 2026-10-04 23:22 UTCEPSS rescore
  2. 2026-10-04 06:09 UTCEG score recompute
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-02 17:56 UTCEPSS rescore
  5. 2026-10-02 10:05 UTCEG score recompute
  6. 2026-10-01 19:50 UTCEPSS rescore
  7. 2026-10-01 02:25 UTCEG score recompute
  8. 2026-09-30 15:03 UTCEPSS rescore
  9. 2026-09-29 06:24 UTCEG score recompute
  10. 2026-09-28 13:52 UTCEPSS rescore
  11. 2026-09-27 17:59 UTCEG score recompute
  12. 2026-09-27 13:48 UTCEPSS rescore
  13. 2026-09-26 15:59 UTCEPSS rescore
  14. 2026-09-24 08:12 UTCEG score recompute
  15. 2026-09-23 17:54 UTCEPSS rescore
  16. 2026-09-23 05:20 UTCEG score recompute
  17. 2026-09-22 03:05 UTCEG score recompute
  18. 2026-09-21 21:09 UTCEPSS rescore
  19. 2026-09-20 20:16 UTCEPSS rescore
  20. 2026-09-20 11:02 UTCEG score recompute
  21. 2026-09-19 07:56 UTCEG score recompute
  22. 2026-09-18 19:28 UTCEPSS rescore
  23. 2026-09-18 03:25 UTCEG score recompute
  24. 2026-09-17 01:10 UTCEG score recompute
  25. 2026-09-16 14:08 UTCEPSS rescore
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  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-15 16:46 UTCEG score recompute
  3. 2026-09-15 03:12 UTCEPSS rescore
  4. 2026-09-14 11:37 UTCEG score recompute
  5. 2026-09-13 09:22 UTCEG score recompute
  6. 2026-09-12 15:02 UTCEPSS rescore
  7. 2026-09-12 07:04 UTCEG score recompute
  8. 2026-09-11 14:53 UTCEPSS rescore
  9. 2026-09-11 04:49 UTCEG score recompute
  10. 2026-09-10 09:35 UTCEPSS rescore
  11. 2026-09-10 02:34 UTCEG score recompute
  12. 2026-09-08 22:01 UTCEPSS rescore
  13. 2026-09-07 18:28 UTCEG score recompute
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-06 13:47 UTCEPSS rescore
  16. 2026-09-06 06:25 UTCEG score recompute
  17. 2026-09-05 15:31 UTCEPSS rescore
  18. 2026-09-05 04:03 UTCEG score recompute
  19. 2026-09-04 05:07 UTCEPSS rescore
  20. 2026-09-03 17:31 UTCEG score recompute
  21. 2026-09-02 14:12 UTCEPSS rescore
  22. 2026-09-02 07:40 UTCEG score recompute
  23. 2026-09-01 13:54 UTCEPSS rescore
  24. 2026-09-01 04:40 UTCEPSS rescore
  25. 2026-08-30 23:57 UTCEG score recompute
  26. 2026-08-30 19:17 UTCEPSS rescore
  27. 2026-08-30 01:22 UTCEPSS rescore
  28. 2026-08-29 21:42 UTCEG score recompute
  29. 2026-08-28 21:42 UTCEPSS rescore
  30. 2026-08-27 13:13 UTCEG score recompute
  31. 2026-08-26 14:47 UTCEPSS rescore
  32. 2026-08-26 10:58 UTCEG score recompute
  33. 2026-08-25 13:49 UTCEPSS rescore
  34. 2026-08-25 08:43 UTCEG score recompute
  35. 2026-08-22 01:58 UTCEG score recompute
  36. 2026-08-21 23:49 UTCEPSS rescore
  37. 2026-08-20 23:43 UTCEG score recompute
  38. 2026-08-20 22:56 UTCEPSS rescore
  39. 2026-08-19 21:27 UTCEG score recompute
  40. 2026-08-19 17:04 UTCEPSS rescore
  41. 2026-08-18 18:47 UTCEG score recompute
  42. 2026-08-18 13:49 UTCEPSS rescore
  43. 2026-08-18 13:49 UTCEPSS rescore
  44. 2026-08-17 16:32 UTCEG score recompute
  45. 2026-08-17 13:47 UTCEPSS rescore
  46. 2026-08-16 14:56 UTCEPSS rescore
  47. 2026-08-16 14:56 UTCEPSS rescore
  48. 2026-08-16 13:56 UTCEG score recompute
  49. 2026-08-16 02:15 UTCEPSS rescore
  50. 2026-08-15 11:41 UTCEG score recompute
  51. 2026-08-15 01:31 UTCEPSS rescore
  52. 2026-08-14 09:26 UTCEG score recompute
  53. 2026-08-13 22:00 UTCEPSS rescore
  54. 2026-08-13 07:12 UTCEG score recompute
  55. 2026-08-12 13:51 UTCEPSS rescore
  56. 2026-08-12 04:57 UTCEG score recompute
  57. 2026-08-11 02:42 UTCEG score recompute
  58. 2026-08-11 00:00 UTCEPSS rescore
  59. 2026-08-10 00:27 UTCEG score recompute
  60. 2026-08-09 13:47 UTCEPSS rescore
  61. 2026-08-08 22:13 UTCEG score recompute
  62. 2026-08-08 16:37 UTCEPSS rescore
  63. 2026-08-07 19:58 UTCEG score recompute
  64. 2026-08-06 17:43 UTCEG score recompute
  65. 2026-08-06 13:47 UTCEPSS rescore
  66. 2026-08-05 19:17 UTCEPSS rescore
  67. 2026-08-05 19:17 UTCEPSS rescore
  68. 2026-08-05 15:28 UTCEG score recompute
  69. 2026-08-05 14:37 UTCEG score recompute
  70. 2026-08-04 22:31 UTCEG score recompute
  71. 2026-08-04 21:42 UTCEG score recompute
  72. 2026-08-04 21:40 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-70590?
CVE-2026-70590 is a medium vulnerability published on August 4, 2026. Ghost is a Node.js content management system. Prior to 6.54.1, any staff-level user was able to leak the hashed passwords of other staff users through the Ghost Admin API. An offline password-guessing attack against the hashes could lead to account takeover if successful, but Device Verification…
When was CVE-2026-70590 disclosed?
CVE-2026-70590 was first published on August 4, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70590 actively exploited?
CVE-2026-70590 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70590?
CVE-2026-70590 has a CVSS base score of 4.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70590?
A fix for CVE-2026-70590 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70590 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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