CVE-2026-28374 IDOR in Annotations API allows unprivileged users to DELETE annotation
Unprivileged editors can delete any annotation via the API, bypassing read access controls and modifying data they should not access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-28374?
CVE-2026-28374 is a medium-severity missing authorization vulnerability in Grafana Grafana, published on 13 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.
Weakness: CWE-284
Which versions are affected by CVE-2026-28374?
1 open source package ship an affected version, including grafana. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
grafana Bitnami | From 8.5.0 | 11.6.14, 12.2.8, 12.3.6, 12.4.3, 13.0.1 |
Products include Grafana Grafana.
How do I fix CVE-2026-28374?
Upgrade grafana to a fixed version for your release line: 11.6.14, 12.2.8, 12.3.6 or 12.4.3.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-28374 being exploited?
There is no known exploitation of CVE-2026-28374 in the wild and no public exploit code.
Other vulnerabilities in Grafana Grafana
Sources
Also known as BIT-grafana-2026-28374, GHSA-8mrj-8pc8-39jm, MINI-3cv7-m423-x9q5, MINI-4phc-7gc8-8qq5, MINI-5vf6-6f8h-wcrc, MINI-66jr-494r-vx7g and 13 more.