{"api_version":"1","generated_at":"2026-09-01T03:53:22+00:00","cve":"CVE-2026-55065","urls":{"html":"https://cve.report/CVE-2026-55065","api":"https://cve.report/api/cve/CVE-2026-55065.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-55065","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-55065"},"summary":{"title":"Vikunja: Improper Authorization and Authorization Bypass Through User-Controlled Key in code.vikunja.io/api","description":"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.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-08-28 20:18:23","updated_at":"2026-09-01 02:16:58"},"problem_types":["CWE-285","CWE-639","CWE-285 CWE-285: Improper Authorization","CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","data":{"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":[{"url":"https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0","name":"https://github.com/go-vikunja/vikunja/releases/tag/v2.4.0","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-vikunja/vikunja/pull/3239","name":"https://github.com/go-vikunja/vikunja/pull/3239","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca","name":"https://github.com/go-vikunja/vikunja/commit/6895a7765ef1667be4b79df29549d33b9e1ca9ca","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv","name":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv","refsource":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-55065","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55065","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"go-vikunja","product":"vikunja","version":"affected >= 0.24.6, < 2.4.0","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"55065","cve":"CVE-2026-55065","epss":"0.003480000","percentile":"0.275710000","score_date":"2026-08-31","updated_at":"2026-09-01 00:06:29"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-55065","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-09-01T01:45:31.342431Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-09-01T01:46:09.120Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["exploit"],"url":"https://github.com/go-vikunja/vikunja/security/advisories/GHSA-gg93-x632-9ccv"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"vikunja","vendor":"go-vikunja","versions":[{"status":"affected","version":">= 0.24.6, < 2.4.0"}]}],"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."}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-28T16:40:27.706Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"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"}],"source":{"advisory":"GHSA-gg93-x632-9ccv","discovery":"UNKNOWN"},"title":"Vikunja: Improper Authorization and Authorization Bypass Through User-Controlled Key in code.vikunja.io/api"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-55065","datePublished":"2026-08-28T16:40:27.706Z","dateReserved":"2026-06-16T14:33:35.710Z","dateUpdated":"2026-09-01T01:46:09.120Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-28 20:18:23","lastModifiedDate":"2026-09-01 02:16:58","problem_types":["CWE-285","CWE-639","CWE-285 CWE-285: Improper Authorization","CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.2}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-01T01:45:31.342431Z","id":"CVE-2026-55065","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"55065","Ordinal":"1","Title":"Vikunja: Improper Authorization and Authorization Bypass Through","CVE":"CVE-2026-55065","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"55065","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"Vikunja: Improper Authorization and Authorization Bypass Through"}]}}}