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    "cveMetadata": {
        "cveId": "CVE-2026-12254",
        "assignerOrgId": "bf992f6a-e49d-4e94-9479-c4cff32c62bc",
        "state": "PUBLISHED",
        "assignerShortName": "Netskope",
        "dateReserved": "2026-06-15T08:38:15.229Z",
        "datePublished": "2026-10-19T15:37:11.423Z",
        "dateUpdated": "2026-10-21T16:31:04.871Z"
    },
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                "orgId": "bf992f6a-e49d-4e94-9479-c4cff32c62bc",
                "shortName": "Netskope",
                "dateUpdated": "2026-10-21T16:31:04.871Z"
            },
            "title": "Netskope Client Captive Portal WebView Persistence allowing SWG bypass issue",
            "datePublic": "2026-10-16T15:16:00.000Z",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-613",
                            "description": "CWE-613 Insufficient session expiration",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-593",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-593 Session Hijacking"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Netskope Inc.",
                    "product": "Netskope Client",
                    "platforms": [
                        "Windows",
                        "MacOS"
                    ],
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "142",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Netskope is notified about a potential gap in its agent (NSClient) where a system with Netskope Client while connecting to an access point with Captive Portal switches to a Network which already has internet connectivity, the Captive Portal does not close. This allows the possibility of abuse via the Captive Portal using a rogue access point to either access malicious sites or exfiltrate data.The issue impacts all versions prior to R142",
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                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://www.netskope.com/resources/netskope-resources/netskope-security-advisory-nskpsa-2026-004"
                }
            ],
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                            "lang": "en",
                            "value": "GENERAL"
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                    ],
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "NONE",
                        "subConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "NONE",
                        "subIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subAvailabilityImpact": "HIGH",
                        "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": 6.4,
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H"
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                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Netskope has fixed the gap and released the patch as listed below:\nR142 and above\nR141 (141.1.7.2827 and above)\nR138 (138.1.15.2826 and above)\nR135 (135.1.26.2824 and above)",
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                            "value": "Netskope has fixed the gap and released the patch as listed below:<br>R142 and above<br>R141 (141.1.7.2827 and above)<br>R138 (138.1.15.2826 and above)<br>R135 (135.1.26.2824 and above)<br>"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Loïc Croche (Independant security researcher)",
                    "type": "finder"
                }
            ],
            "source": {
                "advisory": "NSKPSA-2026-004",
                "discovery": "UNKNOWN"
            },
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            {
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-20T19:28:10.399796Z",
                                "id": "CVE-2026-12254",
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                                        "Exploitation": "none"
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-20T19:28:18.204Z"
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