Quick answers
- Is CVE-2026-16491 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-16491 being exploited in the wild.
- How severe is CVE-2026-16491?
- Medium severity, with a CVSS score of 6.5, published 27 October 2026.
- Which products and versions are affected?
- Grafana Labs Grafana.
- Is there a fix for CVE-2026-16491?
- 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-2026-16491 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-16491?
- Check whether you run Grafana Labs Grafana. 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
The RBAC (Role-Based Access Control) service in Grafana fails to validate the requested folder when determining folder administrator status for deleted dashboard listings. A user with permission-management rights on any folder is incorrectly granted administrator access across all folders. The vulnerability allows viewing of deleted dashboard items from folders where the user lacks proper permissions; remediation requires proper scope validation including folder, ancestor, or wildcard permissions.
Affected products
- Grafana Labs Grafana
Timeline
- 2026-10-27: disclosed