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Medium · 5.4 CVE-2026-63239 EUVD-2026-50134GHSA-4fpv-9r28-747f

Hard-coded AWS IAM credentials vulnerability

Published Jul 29, 2026 · Updated Jul 29, 2026 · Assigned by CSA

Description

A hard-coded AWS IAM credentials vulnerability
in Koollab LMS allowed
an attacker to access shared multi-tenant S3 buckets and SQS queues, exposing
sensitive data and enabling malicious content injection, job manipulation, or
email interception.

Affected products

VendorProductAffectedFixed
Three Learning Koollab LMS 5.3.2 —

References