CVE-2026-53945

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{"affected": [{"affectedData": [{"product": "Ghost", "vendor": "TryGhost", "versions": [{"status": "affected", "version": ">= 6.0.9, < 6.21.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost\u2019s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1."}, {"lang": "es", "value": "Ghost es un sistema de gesti\u00f3n de contenido Node.js. Desde la versi\u00f3n 6.0.9 hasta la 6.21.1, la verificaci\u00f3n de IP privada de Ghost para solicitudes HTTP salientes podr\u00eda ser eludida mediante la reconfiguraci\u00f3n de DNS (DNS rebinding), permitiendo a un atacante obligar al servidor Ghost a alcanzar hosts en redes internas a trav\u00e9s de funciones que realizan recuperaciones externas. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 6.21.1."}], "id": "CVE-2026-53945", "lastModified": "2026-10-25T22:10:00.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-53945", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-25T15:38:04.884131Z", "version": "2.0.3"}}]}, "published": "2026-06-24T19:17:12.090", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/TryGhost/Ghost/security/advisories/GHSA-ch52-px8q-f22j"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}, {"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.0.9,6.21.1)"}}], "enrichment": {"confidence": 88.0, "confidence_source": "matching", "scores": [{"score": 88.0, "source": "matching"}]}, "original": {"product": "Ghost", "source": "cna", "vendor": "TryGhost"}, "product": "ghost", "vendor": "ghost"}], "created": "2026-06-24T20:45:03.356290+00:00", "updated": "2026-06-25T13:15:03.631588+00:00", "vendors": ["ghost", "ghost$PRODUCT$ghost"]}