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CVE-2026-55066

🗓️ 28 Aug 2026 16:51:48Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 26 Views🌐 WEB

Cross-tenant IDOR in Vikunja kanban move-task endpoint enables task completion modification.

Related
Detection
Affected
Refs
Paths
Vulners
Node
vikunjavikunjaRange<2.4.0
[
  {
    "vendor": "go-vikunja",
    "product": "vikunja",
    "versions": [
      {
        "version": "< 2.4.0",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
task_idrequest body/api/v1/projects/{project}/views/{view}/buckets/{bucket}/tasksPOST task creation/update uses a body-supplied task_id while authorization is based on URL path; can enumerate cross-tenant tasks and modify completion status due to missing task-level permission checks (v1/v2 routes share the model).CWE-639

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09 Sep 2026 21:09Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.1
EPSS0.0027
SSVC
26