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CVE-2026-105811 Authorization bypass through a user-controlled key in the Amazon Q Business Lambda hook sample in QnABot on AWS

🗓️ 06 Oct 2026 20:03:31Reported by AMZNType 
cvelist
 cvelist
🔗 www.cve.org👁 46 Views

Authenticated remote users can bypass authorization to read arbitrary S3 objects in QnABot on AWS.

Related
Affected
Refs
[
  {
    "vendor": "aws",
    "product": "qnabot-on-aws",
    "versions": [
      {
        "status": "affected",
        "version": "7.0.0",
        "lessThan": "7.4.6",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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06 Oct 2026 20:03Current
CVSS 3.16.5
CVSS 47.1
EPSS0.00333
SSVC
46