{"id":"CVE-2026-105647","aliases":["BIT-ghost-2026-105647","GHSA-322m-ff4g-9vx9"],"url":"https://o3.security/vulnerability/CVE-2026-105647","summary":"Ghost: Server-Side Request Forgery in Bookmark Fetching","details":"### Impact\n\nA 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. A successful attack would not result in any response data being returned.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v6.54.1 up to v6.64.0.\n\n### Patches\n\nv6.65.0 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 [Nhat Anh Vu](https://github.com/nhattanhh) for disclosing this vulnerability responsibly.\n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [security@ghost.org](mailto:security@ghost.org).","published":"2026-10-05T19:01:20.746Z","modified":"2026-10-21T02:54:33.529358562Z","cvss":{"score":4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"ghost","fixedVersion":"6.65.0"}],"fix":{"url":"https://github.com/TryGhost/Ghost/commit/3f8594eb53de883ac017545c358f59039cb152de","label":"TryGhost/Ghost@3f8594e"},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/releases/tag/v6.65.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105647.json"},{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-322m-ff4g-9vx9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105647"},{"type":"FIX","url":"https://github.com/TryGhost/Ghost/commit/3f8594eb53de883ac017545c358f59039cb152de"},{"type":"FIX","url":"https://github.com/TryGhost/Ghost/pull/30918"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:54:33.529358562Z"}}