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Grafana EUVD-2026-16338

| CVE-2026-21724 MEDIUM
Improper Authorization (CWE-285)
2026-03-26 GRAFANA GHSA-7g92-g4vh-hp84
Grafana Authentication Bypass
5.4
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
5.4 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SUSE
MEDIUM
qualitative
Red Hat
5.4 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

4
Patch released
Apr 09, 2026 - 14:30 nvd
Patch available
EUVD ID Assigned
Mar 26, 2026 - 20:31 euvd
EUVD-2026-16338
Analysis Generated
Mar 26, 2026 - 20:31 vuln.today
CVE Published
Mar 26, 2026 - 20:06 nvd
MEDIUM 5.4

DescriptionCVE.org

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.

AnalysisAI

Grafana OSS provisioning contact points API fails to enforce the alert.notifications.receivers.protected:write permission, allowing users with the Editor role to modify protected webhook URLs and bypass intended authorization controls. This affects Grafana OSS versions 11.6.9 through 11.6.14, 12.1.5 through 12.1.10, 12.2.2 through 12.2.8, and 12.3.1 through 12.3.6. …

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Vulnerability AssessmentAI

Risk Assessment The CVSS v3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N) indicates network-accessible attack surface with low complexity, requiring authenticated low-privilege credentials, and no user interaction. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with a compromised or insider Editor-level account authenticates to the Grafana instance and sends a PUT or POST request directly to the provisioning contact points API endpoint with a modified webhook URL pointing to an attacker-controlled server. Because the API fails to validate the alert.notifications.receivers.protected:write permission, the request succeeds, and subsequent alert notifications are sent to the attacker's endpoint instead of the intended recipient. …
Remediation Upgrade Grafana OSS to patched versions above the affected ranges: version 11.6.14 or later for the 11.6.x line, version 12.1.10 or later for the 12.1.x line, version 12.2.8 or later for the 12.2.x line, and version 12.3.6 or later for the 12.3.x line. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

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Vendor StatusVendor

SUSE

Severity: Medium
Product Status
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EUVD-2026-16338 vulnerability details – vuln.today
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