CVE-2026-63239 json
Hard-coded AWS IAM credentials vulnerability
published 2026-07-29 3 mo ago modified 2026-10-23 16 d ago also EUVD-2026-50134
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 10%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 10% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected products
- Three Learning Koollab LMS
Classification
- Weakness
-
- CWE-798 Use of Hard-coded Credentials
References
Sources
- CVE List CVE-2026-63239
- NVD CVE-2026-63239
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