Vulnerabilities

Authorization bypass through a user-controlled key in the optional Amazon Q Business Lambda hook sample ( q-business-lambda-hook…

Authorization bypass through a user-controlled key in the optional Amazon Q Business Lambda hook sample ( q-business-lambda-hook https://github.com/aws-solutions-library-samples/qnabot-on-aws/blob/main/source/docs/lambda_hooks/README.md ), available with QnABot on AWS versions 7.0.0 through 7.4.5, might allow an authenticated remote user to read arbitrary Amazon S3 objects in the deploying AWS account. This sample solution provides an example Lambda hook and requires separate, manual deployment and additional setup. It is not deployed automatically with QnABot. Customers who have not deployed

Read at NIST National Vulnerability Database (CVE API 2.0)

Vendor

GitHub

Product

github

CVSS

6.5

Exposure class

Cloud platform

• NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
• CVE-2026-105811 on this site · NVD · CVE.org · Vulnpedia

Other items that share a CVE or were clustered with this one.

1. 19
   AWS bulletin AWS 24d ago

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

   Fix available CVE-2026-105811 Amazon Web Services