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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-18796",
        "assignerOrgId": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e",
        "state": "PUBLISHED",
        "assignerShortName": "YesWeHack",
        "dateReserved": "2026-08-04T09:40:15.178Z",
        "datePublished": "2026-09-07T08:07:31.633Z",
        "dateUpdated": "2026-09-07T08:07:31.633Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "30a5e7fb-040d-440a-8cdf-a4a2068ce72e",
                "shortName": "YesWeHack",
                "dateUpdated": "2026-09-07T08:07:31.633Z"
            },
            "title": "QSPI flash encryption side-channel leakage",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-1342",
                            "description": "CWE-1342 Information exposure through microarchitectural state after transient execution",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-37",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-37 Retrieve Embedded Sensitive Data"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Nordic Semiconductor ASA",
                    "product": "nRF5340",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "All build codes"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Any application that\n     uses external QSPI flash for encrypted XIP on nRF5340 and relies on that\n     encryption for confidentiality and/or integrity of the externally stored\n     code. No specific nRF Connect SDK version is the root cause; the weakness\n     is in the on-the-fly decryption scheme.",
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                            "value": "<span>Any application that\n     uses external QSPI flash for encrypted XIP on nRF5340 and relies on that\n     encryption for confidentiality and/or integrity of the externally stored\n     code. No specific nRF Connect SDK version is the root cause; the weakness\n     is in the on-the-fly decryption scheme.</span><br>"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://docs.nordicsemi.com/r/bundle/struct_sa/page/struct/sa.html"
                }
            ],
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                {
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ],
                    "cvssV4_0": {
                        "attackVector": "PHYSICAL",
                        "attackComplexity": "HIGH",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
                        "version": "4.0",
                        "baseSeverity": "MEDIUM",
                        "baseScore": 6.8,
                        "vectorString": "CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:N/SA:N"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Reported externally through PSIRT by Daniël Eijkmann and Damian Vizár (CSEM)",
                    "type": "reporter"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
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}