{"id":"GHSA-fwh9-qg68-vxp4","summary":"Ghost: Regular Expression Denial of Service in Content Import","details":"### Impact\n\nA crafted content import file could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v4.0.0 up to v6.65.0.\n\n### Patches\n\nv6.67.0 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 [ka3n1x](https://github.com/ka3n1x) 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).","aliases":["CVE-2026-105646"],"modified":"2026-10-07T21:00:05.366825304Z","published":"2026-10-07T20:42:53Z","database_specific":{"nvd_published_at":"2026-10-05T19:17:19Z","cwe_ids":["CWE-1333"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-10-07T20:42:53Z"},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-fwh9-qg68-vxp4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-105646"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/pull/31058"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/releases/tag/v6.66.0"}],"affected":[{"package":{"name":"ghost","ecosystem":"npm","purl":"pkg:npm/ghost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"6.67.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-fwh9-qg68-vxp4/GHSA-fwh9-qg68-vxp4.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}