CVE-2026-63239

Hard-coded AWS IAM credentials vulnerability

Medium · published July 29, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
10.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00207 · 10.3th percentile
Published
2026-07-29T06:28Z
EPSS history
Timeline
  • 29 JUL 06:28Z
    Hard-coded AWS IAM credentials vulnerability
    cvelistv5