CVE-2026-21724 Missing Protected-field Authorization in Provisioning Contact Points API

Medium 5.4 Published Updated

Editors can modify protected webhook URLs in Grafana OSS without proper permissions, bypassing authorization controls.

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-2026-21724?

CVE-2026-21724 is a medium-severity missing authorization vulnerability in Grafana Grafana, published on 26 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been discovered in Grafana OSS where an authorization bypass in the provisioning contact points API allows users with Editor role to modify protected webhook URLs without the required alert.notifications.receivers.protected:write permission.

Weakness: CWE-285

Which versions are affected by CVE-2026-21724?

4 open source packages ship an affected version, including github.com/grafana/grafana and grafana. It affects 1 product.

PackageAffectedFixed in
github.com/grafana/grafana GoAll versionsNone
github.com/grafana/grafana GoAll versions1.9.2-0.20260323180334-daffe750de85
github.com/grafana/grafana GoAll versions1.9.2-0.20260323180334-daffe750de85
grafana BitnamiFrom 11.6.911.6.14, 12.1.10, 12.2.8, 12.3.6

Products include Grafana Grafana.

How do I fix CVE-2026-21724?

Upgrade github.com/grafana/grafana to 1.9.2-0.20260323180334-daffe750de85 or later.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-21724 being exploited?

There is no known exploitation of CVE-2026-21724 in the wild and no public exploit code.

All Grafana Grafana vulnerabilities

Sources

Also known as BIT-grafana-2026-21724, GHSA-7g92-g4vh-hp84, GO-2026-5219, MINI-2v58-35xh-63m5, MINI-3h3q-m2p8-874q, MINI-3m8r-c538-g455 and 6 more.

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