CVE-2026-43798

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{"affected": [{"affectedData": [{"product": "swift-nio-ssh", "vendor": "Apple", "versions": [{"lessThan": "0.14.1", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "product-security@apple.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apple:swiftnio_ssh:*:*:*:*:*:swift:*:*", "matchCriteriaId": "146E01C2-0053-4C07-8D48-46128664F3B6", "versionEndExcluding": "0.14.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A single crafted SSH message gives an unauthenticated network attacker an out-of-bounds stack write of attacker-controlled length and content against any application built on swift-nio-ssh. This vulnerability is addressed in swift-nio-ssh version 0.14.1."}, {"lang": "es", "value": "Un \u00fanico mensaje SSH manipulado otorga a un atacante de red no autenticado una escritura de pila fuera de l\u00edmites de longitud y contenido controlados por el atacante contra cualquier aplicaci\u00f3n construida sobre swift-nio-ssh. Esta vulnerabilidad se aborda en la versi\u00f3n 0.14.1 de swift-nio-ssh."}], "id": "CVE-2026-43798", "lastModified": "2026-10-18T20:10:00.110", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-43798", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-26T14:05:29.478852Z", "version": "2.0.3"}}]}, "published": "2026-08-20T21:17:06.580", "references": [{"source": "product-security@apple.com", "tags": ["Vendor Advisory", "Patch"], "url": "https://github.com/apple/swift-nio-ssh/security/advisories/GHSA-998x-vgvp-xwpc"}], "sourceIdentifier": "product-security@apple.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-121"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.14.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "swift-nio-ssh", "source": "cna", "vendor": "Apple"}, "product": "swiftnio_ssh", "vendor": "apple"}], "created": "2026-08-21T01:15:07.279023+00:00", "updated": "2026-08-26T17:30:10.017204+00:00", "vendors": ["apple", "apple$PRODUCT$swiftnio_ssh"], "weaknesses": ["CWE-119", "CWE-121", "CWE-122"]}