Quick answers
- Is CVE-2026-91527 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91527 being exploited in the wild.
- How severe is CVE-2026-91527?
- High severity, with a CVSS score of 8.8, published 20 October 2026.
- Which products and versions are affected?
- Oracle Zfs Storage Appliance Kit 8.8.
- Is there a fix for CVE-2026-91527?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-91527 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-91527?
- Check whether you run Oracle Zfs Storage Appliance Kit 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.
Technical details
An easily exploitable vulnerability in the Core component of Oracle ZFS Storage Appliance Kit allows a low-privileged attacker with network access via HTTP to achieve full system compromise. The vulnerability requires authentication but grants complete control over the appliance including confidentiality, integrity, and availability impacts. A fix is expected from Oracle.
Affected products
- Oracle ZFS Storage Appliance Kit 8.8
Timeline
- 2026-10-20: disclosed