{"id":"CVE-2026-105645","state":"PUBLISHED","title":"Ghost: Regular Expression Denial of Service in External Media Inliner","description":"Ghost is a Node.js content management system. From 5.37.0 until 6.67.0, a crafted request to the external media inliner could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0.","publishedAt":"2026-10-05T18:56:02.471Z","updatedAt":"2026-10-05T19:08:46.517Z","severity":{"score":4.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["TryGhost Ghost"],"affected":[{"vendor":"TryGhost","product":"Ghost","versions":[{"version":">= 5.37.0, < 6.67.0","status":"affected"}]}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-9m4w-fmjw-fvjq","https://github.com/TryGhost/Ghost/issues/31058","https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce","https://github.com/TryGhost/Ghost/releases/tag/v6.66.0"],"weaknesses":["CWE-1333"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105645.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105645","state":"PUBLISHED","datePublished":"2026-10-05T18:56:02.471Z","dateUpdated":"2026-10-05T19:08:46.517Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T16:40:39.612Z"},"containers":{"cna":{"title":"Ghost: Regular Expression Denial of Service in External Media Inliner","descriptions":[{"lang":"en","value":"Ghost is a Node.js content management system. From 5.37.0 until 6.67.0, a crafted request to the external media inliner could cause excessive CPU usage, making the Ghost server unresponsive. Exploiting this requires Administrator access. This issue is fixed in version 6.67.0."}],"affected":[{"vendor":"TryGhost","product":"Ghost","versions":[{"version":">= 5.37.0, < 6.67.0","status":"affected"}]}],"references":[{"url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-9m4w-fmjw-fvjq","name":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-9m4w-fmjw-fvjq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/TryGhost/Ghost/issues/31058","name":"https://github.com/TryGhost/Ghost/issues/31058","tags":["x_refsource_MISC"]},{"url":"https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce","name":"https://github.com/TryGhost/Ghost/commit/88ae6d6d56f8a239cb38a8c89de02f034f50e2ce","tags":["x_refsource_MISC"]},{"url":"https://github.com/TryGhost/Ghost/releases/tag/v6.66.0","name":"https://github.com/TryGhost/Ghost/releases/tag/v6.66.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":4.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1333","lang":"en","description":"CWE-1333: Inefficient Regular Expression Complexity","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-05T18:56:02.471Z"},"source":{"advisory":"GHSA-9m4w-fmjw-fvjq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-05T19:08:23.834511Z","id":"CVE-2026-105645","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-05T19:08:46.517Z"}}]}}}