{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-55065",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-16T14:33:35.710Z",
        "datePublished": "2026-08-28T16:40:27.706Z",
        "dateUpdated": "2026-08-28T16:40:27.706Z"
    },
    "containers": {
        "cna": {
            "title": "Vikunja: Improper Authorization and Authorization Bypass Through User-Controlled Key in code.vikunja.io/api",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-285",
                            "lang": "en",
                            "description": "CWE-285: Improper Authorization",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-639",
                            "lang": "en",
                            "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.1,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv"
                },
                {
                    "name": "https://github.com/go-vikunja/vikunja/pull/3239",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/go-vikunja/vikunja/pull/3239"
                },
                {
                    "name": "https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca"
                },
                {
                    "name": "https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0"
                }
            ],
            "affected": [
                {
                    "vendor": "go-vikunja",
                    "product": "vikunja",
                    "versions": [
                        {
                            "version": ">= 0.24.6, < 2.4.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-08-28T16:40:27.706Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Vikunja is an open-source self-hosted task management platform. From 0.24.6 until 2.4.0, DELETE /api/v1/projects/:project/views/:view permits an authenticated user to supply a view identifier from another project while authorizing only against an attacker-controlled project identifier. ProjectView.CanDelete in pkg/models/project_view_permissions.go does not establish that the view belongs to the path project, and ProjectView.Delete in pkg/models/project_view.go continues after the scoped project_views delete affects no rows. Its subsequent deletes select task_buckets and task_positions only by project_view_id, allowing cross-tenant destruction of Kanban assignments and ordering while leaving the victim view and tasks intact. This issue is fixed in version 2.4.0."
                }
            ],
            "source": {
                "advisory": "GHSA-gg93-x632-9ccv",
                "discovery": "UNKNOWN"
            }
        }
    }
}