How severe is CVE-2026-21724?

CVE-2026-21724 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-21724 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-21724?

CVE-2026-21724 affects Grafana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-21724?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-21724 have an EU (EUVD) identifier?

Yes. CVE-2026-21724 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16338.

When was CVE-2026-21724 published?

CVE-2026-21724 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-21724

CVE-2026-21724 is a medium-severity vulnerability in Grafana with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16338
Weakness: CWE-285
Affected product: Grafana
Published: 2026-03-26
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-21724?: 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.
How severe is CVE-2026-21724?: CVE-2026-21724 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-21724 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-21724?: CVE-2026-21724 affects Grafana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-21724?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-21724 have an EU (EUVD) identifier?: Yes. CVE-2026-21724 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16338.
When was CVE-2026-21724 published?: CVE-2026-21724 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://grafana.com/security/security-advisories/cve-2026-21724

Affected products (1)

cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*

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