CVE-2026-70591

MEDIUMPre-NVD 4.14.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (28th 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
4.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 4.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Ghost is a Node.js content management system. From 0.10.0 until 6.54.1, a Server-Side Request Forgery in Ghost Admin image fetching allowed any staff-level user to perform a blind HTTP GET request against internal hosts. No output was returned, but this could have been used to probe open ports on internal hosts. This issue is fixed in version 6.54.1.

CVSS v3
4.1
EG Score
4.1MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100CISA 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
Severity41% × 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
0.4%
EPSS %ILE
28th
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 (3)

Auto-updated Aug 4, 2026
Patch available. Sources: github_commit, github_release, github.
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 5eff2de0f477 (TryGhost/Ghost)

Patch available: TryGhost/Ghost v6.54.1 (contains commit 5eff2de0f477)

https://github.com/TryGhost/Ghost/commit/5eff2de0f477b11c88f20bceb9d184c0d3b8a62e
github Patch Available

Server-Side Request Forgery in Image Fetching · Advisory · TryGhost/Ghost · GitHub

https://github.com/TryGhost/Ghost/security/advisories/GHSA-gcvv-72q8-9v76

Vendor Advisories for CVE-2026-70591(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—
  • 0.10.0 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 9× in last 7d / 44× 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 104 total refreshes for this CVE.

  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
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  11. 2026-09-27 17:59 UTCEG score recompute
  12. 2026-09-27 13:48 UTCEPSS rescore
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  22. 2026-09-19 23:22 UTCEG score recompute
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  24. 2026-09-18 19:28 UTCEPSS rescore
  25. 2026-09-18 02:37 UTCEG score recompute
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  1. 2026-09-17 04:35 UTCEG score recompute
  2. 2026-09-16 14:08 UTCEPSS rescore
  3. 2026-09-16 06:33 UTCEG score recompute
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  6. 2026-09-15 03:12 UTCEPSS rescore
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  8. 2026-09-13 12:23 UTCEG score recompute
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  11. 2026-09-11 14:53 UTCEPSS rescore
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  15. 2026-09-08 22:01 UTCEPSS rescore
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  17. 2026-09-06 13:47 UTCEPSS rescore
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  20. 2026-09-05 08:09 UTCEG score recompute
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  22. 2026-09-04 05:07 UTCEPSS rescore
  23. 2026-09-03 07:19 UTCEG score recompute
  24. 2026-09-02 14:12 UTCEPSS rescore
  25. 2026-09-01 22:12 UTCEG score recompute
  26. 2026-09-01 13:54 UTCEPSS rescore
  27. 2026-09-01 04:40 UTCEPSS rescore
  28. 2026-08-30 19:47 UTCEG score recompute
  29. 2026-08-30 19:17 UTCEPSS rescore
  30. 2026-08-30 01:22 UTCEPSS rescore
  31. 2026-08-29 21:42 UTCEG score recompute
  32. 2026-08-28 21:42 UTCEPSS rescore
  33. 2026-08-27 19:57 UTCEG score recompute
  34. 2026-08-26 19:09 UTCEG score recompute
  35. 2026-08-26 14:47 UTCEPSS rescore
  36. 2026-08-25 20:22 UTCEG score recompute
  37. 2026-08-25 13:49 UTCEPSS rescore
  38. 2026-08-24 22:20 UTCEG score recompute
  39. 2026-08-23 02:16 UTCEG score recompute
  40. 2026-08-23 00:19 UTCEPSS rescore
  41. 2026-08-22 04:10 UTCEG score recompute
  42. 2026-08-21 23:49 UTCEPSS rescore
  43. 2026-08-21 06:07 UTCEG score recompute
  44. 2026-08-20 22:56 UTCEPSS rescore
  45. 2026-08-20 08:05 UTCEG score recompute
  46. 2026-08-19 17:04 UTCEPSS rescore
  47. 2026-08-19 10:03 UTCEG score recompute
  48. 2026-08-18 13:49 UTCEPSS rescore
  49. 2026-08-18 13:49 UTCEPSS rescore
  50. 2026-08-17 13:56 UTCEG score recompute
  51. 2026-08-17 13:47 UTCEPSS rescore
  52. 2026-08-16 15:54 UTCEG score recompute
  53. 2026-08-16 14:56 UTCEPSS rescore
  54. 2026-08-16 14:56 UTCEPSS rescore
  55. 2026-08-16 02:15 UTCEPSS rescore
  56. 2026-08-15 17:52 UTCEG score recompute
  57. 2026-08-15 01:31 UTCEPSS rescore
  58. 2026-08-14 19:49 UTCEG score recompute
  59. 2026-08-13 22:00 UTCEPSS rescore
  60. 2026-08-12 23:45 UTCEG score recompute
  61. 2026-08-12 13:51 UTCEPSS rescore
  62. 2026-08-12 01:44 UTCEG score recompute
  63. 2026-08-11 03:42 UTCEG score recompute
  64. 2026-08-11 00:00 UTCEPSS rescore
  65. 2026-08-10 05:40 UTCEG score recompute
  66. 2026-08-09 13:47 UTCEPSS rescore
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  68. 2026-08-08 16:37 UTCEPSS rescore
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  70. 2026-08-07 11:35 UTCEG score recompute
  71. 2026-08-06 13:47 UTCEPSS rescore
  72. 2026-08-06 13:31 UTCEG score recompute
  73. 2026-08-05 19:17 UTCEPSS rescore
  74. 2026-08-05 19:17 UTCEPSS rescore
  75. 2026-08-05 15:28 UTCEG score recompute

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Frequently asked(5)

What is CVE-2026-70591?
CVE-2026-70591 is a medium vulnerability published on August 4, 2026. Ghost is a Node.js content management system. From 0.10.0 until 6.54.1, a Server-Side Request Forgery in Ghost Admin image fetching allowed any staff-level user to perform a blind HTTP GET request against internal hosts. No output was returned, but this could have been used to probe open ports on…
When was CVE-2026-70591 disclosed?
CVE-2026-70591 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-2026-70591 actively exploited?
CVE-2026-70591 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70591?
CVE-2026-70591 has a CVSS base score of 4.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70591?
A fix for CVE-2026-70591 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70591 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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