CVE-2026-21724: A vulnerability has been discovered in Grafana OSS where an authorization bypass in the provisioning contact p

Routine

MEDIUM 5.4UPGRADE

CVE-2026-21724 is a medium-severity flaw (CVSS 5.4) affecting grafana. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 80%)
CISA exploited list	No
Weakness	CWE-285
Published	2026-03-26
Last modified	2026-06-17

Publisher (CNA): Grafana Labs · Vendor: grafana

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-26 21:17 UTCPublished CVE record published
2026-06-17 13:20 UTCUpdated Record last modified

grafana grafana UPGRADE

Affected: >= 11.6.9 and < 11.6.14 · >= 12.1.5 and < 12.1.10 · >= 12.2.2 and < 12.2.8 · >= 12.3.1 and < 12.3.6

Fixed in: 11.6.14, 12.1.10, 12.2.8, 12.3.6

Safe to downgrade to: a release before 11.6.9

1. Check installed version

apt-cache policy grafana || rpm -q grafana || grafana --version

2. UPGRADE to 11.6.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade grafana

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade grafana

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 11.6.9 (Debian / Ubuntu)

apt-cache madison grafana sudo apt install grafana=<VERSION_BEFORE_11.6.9> sudo apt-mark hold grafana

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list grafana sudo dnf downgrade grafana-<VERSION_BEFORE_11.6.9> sudo dnf versionlock add grafana

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-21724?

grafana: upgrade to 11.6.14, 12.1.10, 12.2.8, 12.3.6. Exact commands for each OS are on this page.

Is CVE-2026-21724 being exploited?

CVE-2026-21724 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-21724 affect?

CVE-2026-21724 affects grafana. Severity is medium (CVSS 5.4). 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.protec

How urgent is CVE-2026-21724?

Priority 24/100. No elevated risk signals yet.

Software pages

Grafana vulnerabilities

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References

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