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CVE-2026-105648— Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses

Quick assessment

Affected
TryGhost Ghost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Ghost 是一个基于 Node.js 的内容管理系统（CMS）。在版本 6.0.9 至 6.65.0 期间，存在一个验证缺陷，允许未认证的攻击者滥用某些功能（例如 Webmentions），在某些网络配置下向 Ghost 服务器内部网络中的主机发起有限的 HTTP 请求。成功利用该漏洞不会导致任何响应数据被返回。该问题已在版本 6.65.0 中修复。

CVSS 4.0 · Medium

Possible ATT&CK Techniques 1 AI

T1598 · Phishing for Information

Affected Version Matrix 1

VendorProduct Version RangeStatus
TryGhost Ghost >= 6.0.9, < 6.65.0 affected
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I. Basic Information for CVE-2026-105648

Vulnerability Information
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Vulnerability Title
Ghost: Private IP Filtering Bypass via IPv6 Transition Addresses
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TryGhost Ghost >= 6.0.9, < 6.65.0 -

II. Public POCs for CVE-2026-105648

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III. Intelligence Information for CVE-2026-105648

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Other References for CVE-2026-105648 (4)

Same Patch Batch · TryGhost · 2026-10-05 · 20 CVEs total

CVE-2026-105642 8.8 HIGH Ghost: Remote Code Execution via Bookmark Card Images
CVE-2026-105650 8.1 HIGH Ghost: Stored XSS via oEmbed Photo Responses
CVE-2026-105675 7.5 HIGH Ghost: Invite Token Disclosure in Ghost Admin API
CVE-2026-105643 7.3 HIGH Ghost: Stored XSS via Embed Card Previews
CVE-2026-105651 7.3 HIGH Ghost: Stored XSS via Bookmark Card Images
CVE-2026-105649 7.3 HIGH Ghost: Stored XSS via SVG Uploads Bypassing Sanitization
CVE-2026-105679 7.3 HIGH Ghost: Stored XSS via File Uploads on Local Storage
CVE-2026-105677 7.2 HIGH Ghost: Remote Code Execution via Theme Translation Files
CVE-2026-105644 6.8 MEDIUM Ghost: Stored XSS via SVG Files in Content Imports
CVE-2026-105680 6.5 MEDIUM Ghost: Authorization Issue Allowed Author Role to Delete any Post
CVE-2026-105681 6.5 MEDIUM Ghost: Authorization Bypass in Comments Feature
CVE-2026-105646 4.9 MEDIUM Ghost: Regular Expression Denial of Service in Content Import
CVE-2026-105645 4.9 MEDIUM Ghost: Regular Expression Denial of Service in External Media Inliner
CVE-2026-105676 4.9 MEDIUM Ghost: Path Traversal via Locale Setting
CVE-2026-105678 4.3 MEDIUM Ghost: Editors Could Promote Staff Users to Their Own Role
CVE-2026-105647 4.0 MEDIUM Ghost: Server-Side Request Forgery in Bookmark Fetching
CVE-2026-105683 3.8 LOW Ghost: Path Traversal Vulnerability in Ghost ImageSize Service
CVE-2026-105652 3.1 LOW Ghost: Password Hash Ordering Disclosure in Ghost Admin API
CVE-2026-105682 2.7 LOW Ghost: Server-Side Request Forgery in Webhook Trigger

IV. Related Vulnerabilities

Same product: Ghost
Same vendor: TryGhost
Same weakness: CWE-184

V. Comments for CVE-2026-105648

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