Ghost is a Node.js content management system. From 6.0.9 until 6.65.0, a validation issue allowed some functionality, such as Webmentions, to be abused by an unauthenticated user to make limited HTTP requests to hosts in the Ghost server's internal network on some network configurations. A successful attack would not result in any response data being returned. This issue is fixed in version 6.65.0.
CVE-2026-105648
MEDIUMPre-NVD 4.04.0
EchelonGraph scoreLOW confidence
This medium-severity CVE scores 4.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). 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: secondary
4.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 4.0Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- 4.0
- EG Score
- 4.0MEDIUMlow confidence
- EG Risk
- 23EG Risk 23/100CISA 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 computedSeverity40% × 45%Exploitation0% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).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
- —
- EPSS %ILE
- —
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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
October 5, 2026
Last Modified
October 5, 2026
Advisory Details (4)
Auto-updated Oct 5, 2026Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available
v6.65.0
Patch available: TryGhost/Ghost v6.65.0
https://github.com/TryGhost/Ghost/releases/tag/v6.65.0github_commit Patch Available
commit 20d3f792bf4a (TryGhost/Ghost)
Patch available: TryGhost/Ghost v6.65.0 (contains commit 20d3f792bf4a)
https://github.com/TryGhost/Ghost/commit/20d3f792bf4a7c349ee56b746a067550d8684ff5github_pr Patch Available
Simplified external request ip logic
Patch available: TryGhost/Ghost v6.65.0 (PR #30917 merged 2026-09-21)
https://github.com/TryGhost/Ghost/pull/30917githubMentions a patch (unverified)
Private IP Filtering Bypass via IPv6 Transition Addresses · Advisory · TryGhost/Ghost · GitHub
https://github.com/TryGhost/Ghost/security/advisories/GHSA-r7f2-6fj8-6fg2Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 3× in last 7d / 3× 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.
- 2026-10-05 20:25 UTCEG score recompute
- 2026-10-05 19:21 UTCEG score recompute
- 2026-10-05 19:20 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-105648?
CVE-2026-105648 is a medium vulnerability published on October 5, 2026. Ghost is a Node.js content management system. From 6.0.9 until 6.65.0, a validation issue allowed some functionality, such as Webmentions, to be abused by an unauthenticated user to make limited HTTP requests to hosts in the Ghost server's internal network on some network configurations. A…
When was CVE-2026-105648 disclosed?
CVE-2026-105648 was first published on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-105648?
CVE-2026-105648 has a CVSS base score of 4.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-105648?
A fix for CVE-2026-105648 is available: update to the fixed version the vendor names in its advisory.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-105648
Is Your Infrastructure Affected by CVE-2026-105648?
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