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CVE-2026-45398

🗓️ 15 May 2026 20:35:35Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 89 Views🌐 WEB

Authenticated users can read and overwrite private knowledge bases via retrieval and write endpoints in Open WebUI before 0.9.5.

Related
Detection
Affected
Refs
Paths
NVD
Vulners
Node
[
  {
    "vendor": "open-webui",
    "product": "open-webui",
    "versions": [
      {
        "version": "< 0.9.5",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
knowledge base UUIDnested/process/textAuthenticated users can inject content into or overwrite another user's knowledge base by providing a private knowledge base UUID in the retrieval write endpoint.CWE-639
knowledge base UUIDnested/process/fileAuthenticated users can inject content into or overwrite another user's knowledge base by providing a private knowledge base UUID in the retrieval write endpoint.CWE-639
knowledge base UUIDnested/process/files/batchAuthenticated users can inject content into or overwrite another user's knowledge base by providing a private knowledge base UUID in the retrieval write endpoint.CWE-639
knowledge base UUIDnested/process/webAuthenticated users can inject content into or overwrite another user's knowledge base by providing a private knowledge base UUID in the retrieval write endpoint.CWE-639
knowledge base UUIDnested/process/youtubeAuthenticated users can inject content into or overwrite another user's knowledge base by providing a private knowledge base UUID in the retrieval write endpoint.CWE-639

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17 Jun 2026 10:52Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.5
EPSS0.00489
SSVC
89