GHSA-WVP2-4QQP-4H3R中危已审查

Ghost: Private IP filtering bypass to make server-side requests to internal services

OSV 1.4.0 · github-reviewed · 修改于 2026-08-05 05:13

发布时间

2026-08-05 05:13

GitHub 审查时间

2026-08-05 05:13

NVD 发布时间

2026-06-25 03:17

源文件

advisories/github-reviewed/2026/08/GHSA-wvp2-4qqp-4h3r/GHSA-wvp2-4qqp-4h3r.json

公告说明

Impact

When making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 address.

Vulnerable versions

This vulnerability is present in Ghost from v6.0.9 up to v6.21.0.

Patches

v6.21.1 contains a fix for this issue.

How to update

For self-hosters using Docker, find Docker's official Ghost image here. Updating a Docker-based Ghost instance is documented here.

If your Ghost is a Ghost-CLI install see our documentation on updating it to the latest version here.

References

Ghost thanks l3tchupkt for disclosing this vulnerability responsibly.

For more information

If you have any questions or comments about this advisory, email us at [email protected].

受影响的软件包

npm

标识信息

别名 / CVE

CVE-2026-53944

CWE

CWE-184CWE-918

软件生态

npm

扩展资料

暂无扩展资料。

CVSS 评分

CVSS_V3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

原始 OSV JSON

{
  "id": "GHSA-wvp2-4qqp-4h3r",
  "aliases": [
    "CVE-2026-53944"
  ],
  "details": "### Impact\n\nWhen making an external request, it is possible to bypass the IP filter that ensures the request isn't going to an internal service using an IPv6 literal which maps to a private IPv4 address.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v6.0.9 up to v6.21.0.\n\n### Patches\n\nv6.21.1 contains a fix for this issue.\n\n### How to update\n\nFor self-hosters using Docker, find [Docker's official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/docker#updating-ghost). \n\nIf your Ghost is a Ghost-CLI install see our documentation on [updating it to the latest version here](https://docs.ghost.org/update). \n\n### References\n\nGhost thanks [l3tchupkt](http://github.com/l3tchupkt) for disclosing this vulnerability responsibly.\n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [[email protected]](mailto:[email protected]).",
  "summary": "Ghost: Private IP filtering bypass to make server-side requests to internal services",
  "affected": [
    {
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "6.0.9"
            },
            {
              "fixed": "6.21.1"
            }
          ]
        }
      ],
      "package": {
        "name": "ghost",
        "ecosystem": "npm"
      },
      "database_specific": {
        "last_known_affected_version_range": "<= 6.21.0"
      }
    }
  ],
  "modified": "2026-08-04T21:13:16Z",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N"
    }
  ],
  "published": "2026-08-04T21:13:16Z",
  "references": [
    {
      "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-wvp2-4qqp-4h3r",
      "type": "WEB"
    },
    {
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53944",
      "type": "ADVISORY"
    },
    {
      "url": "https://github.com/TryGhost/Ghost/pull/26749",
      "type": "WEB"
    },
    {
      "url": "https://github.com/TryGhost/Ghost/commit/9b7f2212970fade08ecbec543b405190471e38d4",
      "type": "WEB"
    },
    {
      "url": "https://github.com/TryGhost/Ghost",
      "type": "PACKAGE"
    },
    {
      "url": "https://github.com/TryGhost/Ghost/releases/tag/v6.21.1",
      "type": "WEB"
    }
  ],
  "schema_version": "1.4.0",
  "database_specific": {
    "cwe_ids": [
      "CWE-184",
      "CWE-918"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "nvd_published_at": "2026-06-24T19:17:11Z",
    "github_reviewed_at": "2026-08-04T21:13:16Z"
  }
}