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CVE-2026-45402

🗓️ 15 May 2026 20:40:04Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 26 Views🌐 WEB

CVE-2026-45402: Unchecked file_id enables cross-user access and potential overwrite via folder and knowledge endpoints.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
[
  {
    "vendor": "open-webui",
    "product": "open-webui",
    "versions": [
      {
        "version": "< 0.9.5",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
file_idrequest bodyapi/v1/folders/{id}/updateUser-supplied file_id can be attached to a resource without ownership/permission verification, enabling exfiltration or overwriting of another user's file via downstream file-content paths.CWE-639

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17 Jun 2026 10:52Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.18.1
EPSS0.00346
SSVC
26