{"id":"CVE-2026-103290","aliases":["BIT-ghost-2026-103290","BIT-ghost-2026-105683","CVE-2026-105683","GHSA-83rp-q473-j88c"],"url":"https://o3.security/vulnerability/CVE-2026-103290","summary":"Ghost 6.14.0 before 6.27.0 Path Traversal via ImageSize","details":"### Impact\n\nAn input validation issue may have allowed staff users to access local files outside the intended data storage directories on the server.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v6.14.0 up to v6.27.0.\n\n### Patches\n\nv6.27.0 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\n### References\n\nGhost thanks [l3tchupkt](https://github.com/l3tchupkt) and krn0@bugcrowdninja.com 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":"2026-10-01T10:42:23.870Z","modified":"2026-10-21T02:54:30.597683502Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"ghost","fixedVersion":"6.27.0"}],"fix":{"url":"https://github.com/TryGhost/Ghost/pull/27217","label":"TryGhost/Ghost#27217"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103290.json"},{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-83rp-q473-j88c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103290"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/ghost-6.14.0-before-6.27.0-path-traversal-via-imagesize"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105683"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/pull/27217"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/commit/770d438fd9d352bbfccbe81dd890580a1d3fd6f0"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/releases/tag/v6.27.0"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-21T02:54:30.597683502Z"}}