Quick answers
- Is CVE-2026-3684 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-3684 being exploited in the wild.
- How severe is CVE-2026-3684?
- Medium severity, with a CVSS score of 6.5, published 8 November 2026.
- Which products and versions are affected?
- IBM Cloud Pak for Data System 11.3.1.2 IF001, 11.3.1.2 IF002.
- Is there a fix for CVE-2026-3684?
- Yes: fixed in 11.3.1.2-IF3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-3684 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-3684?
- Check whether you run IBM Cloud Pak for Data System at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: 11.3.1.2-IF3
Technical details
An incorrect permission assignment allows administrative users to read and write arbitrary files on the system outside their intended scope. This is a privilege escalation/abuse vulnerability requiring already-elevated administrative credentials and local or direct access. An attacker with admin access gains unauthorized file system access beyond what their administrative role should permit.
Affected products
- IBM Cloud Pak for Data System 11.3.1.2 IF001, 11.3.1.2 IF002
Timeline
- 2026-11-08: disclosed