Is CVE-2026-28374 in the CISA KEV catalog?

No. CVE-2026-28374 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-28374?

CVE-2026-28374 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2026-28374?

CVE-2026-28374 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-28374?

Upgrade GrafanaEnterprise to 12.2.8 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2026-28374

MEDIUM

4.3

CVSS v3

NVD

Description

Editors could delete any annotation, even those they do not have read access to. The editor user cannot create or read the annotations.

CWE-284Improper Access Control

How to fix

Remediation Available

GrafanaEnterpriseWindows application

Affected:12.2.0 12.2.8Fixed in:12.2.8Grafana Labs

Affected:8.5.0 11.6.14Fixed in:11.6.14Grafana Labs

Affected:12.3.0 12.3.6Fixed in:12.3.6Grafana Labs

Affected:12.4.0 12.4.3Fixed in:12.4.3Grafana Labs

GrafanaOSSWindows application

Affected:12.4.0 12.4.3Fixed in:12.4.3Grafana Labs

Affected:12.3.0 12.3.6Fixed in:12.3.6Grafana Labs

Affected:8.5.0 11.6.14Fixed in:11.6.14Grafana Labs

Affected:12.2.0 12.2.8Fixed in:12.2.8Grafana Labs

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Vendor Advisory1

grafana.com

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-02.