{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-1181",
        "assignerOrgId": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79",
        "state": "PUBLISHED",
        "assignerShortName": "Altium",
        "dateReserved": "2026-01-19T11:47:00.514Z",
        "datePublished": "2026-01-19T12:00:10.265Z",
        "dateUpdated": "2026-01-26T21:20:18.423Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "affected",
                    "modules": [
                        "Workspace API"
                    ],
                    "platforms": [
                        "Web"
                    ],
                    "product": "Altium 365",
                    "vendor": "Altium",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "unspecified",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "datePublic": "2026-01-15T22:48:00.000Z",
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "Altium 365 workspace endpoints were configured with an overly permissive Cross-Origin Resource Sharing (CORS) policy that allowed credentialed cross-origin requests from other Altium-controlled subdomains, including forum.live.altium.com. As a result, JavaScript executing on those origins could access authenticated workspace APIs in the context of a logged-in user. When chained with vulnerabilities in those external applications, this misconfiguration enables unauthorized access to workspace data, administrative actions, and bypass of IP allowlisting controls, including in GovCloud environments."
                        }
                    ],
                    "value": "Altium 365 workspace endpoints were configured with an overly permissive Cross-Origin Resource Sharing (CORS) policy that allowed credentialed cross-origin requests from other Altium-controlled subdomains, including forum.live.altium.com. As a result, JavaScript executing on those origins could access authenticated workspace APIs in the context of a logged-in user. When chained with vulnerabilities in those external applications, this misconfiguration enables unauthorized access to workspace data, administrative actions, and bypass of IP allowlisting controls, including in GovCloud environments."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-122",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-122 Privilege Abuse"
                        }
                    ]
                },
                {
                    "capecId": "CAPEC-17",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-17 Accessing, Modifying, or Executing Executable Files"
                        }
                    ]
                },
                {
                    "capecId": "CAPEC-233",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-233 Privilege Escalation via Trust Boundary Violation"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "CHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-942",
                            "description": "CWE-942 – Permissive Cross-domain Policy with Untrusted Domains",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-284",
                            "description": "CWE-284 Improper Access Control",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79",
                "shortName": "Altium",
                "dateUpdated": "2026-01-26T21:20:18.423Z"
            },
            "references": [
                {
                    "url": "https://www.altium.com/platform/security-compliance/security-advisories"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "Altium 365 Over-Permissive CORS Configuration Allows Credentialed Cross-Origin Workspace Access",
            "x_generator": {
                "engine": "Vulnogram 0.5.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-01-20T21:29:36.260341Z",
                                "id": "CVE-2026-1181",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-01-20T21:29:42.528Z"
                }
            }
        ]
    }
}