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MinIO has an Unauthenticated Object Write via Query-String Credential Signature Bypass in Unsigned-Trailer Uploads

🗓️ 14 Apr 2026 23:40:05Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 5 Views

MinIO bypass lets a valid access key write objects via query string without a signature.

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05 May 2026 15:43Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.2
CVSS 48.8
EPSS0.00132
SSVC
5