How severe is CVE-2026-28376?

CVE-2026-28376 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-28376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28376?

CVE-2026-28376 primarily affects Grafana. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-28376?

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

Does CVE-2026-28376 have an EU (EUVD) identifier?

Yes. CVE-2026-28376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30138.

When was CVE-2026-28376 published?

CVE-2026-28376 was published on 2026-05-13 and last updated on 2026-06-17.

CVE-2026-28376

CVE-2026-28376 is a medium-severity vulnerability in Grafana with a CVSS 3.x base score of 6.5. 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-770.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-30138
Weakness: CWE-770
Affected product: Grafana
Published: 2026-05-13
Last modified: 2026-06-17

Description

The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to out-of-memory conditions. An authenticated user with access to the Grafana Live API can trigger this issue.

Frequently asked questions

What is CVE-2026-28376?: The Grafana Live push endpoint can be exploited to cause unbounded memory allocation by sending a large or streaming request body, potentially leading to out-of-memory conditions. An authenticated user with access to the Grafana Live API can trigger this issue.
How severe is CVE-2026-28376?: CVE-2026-28376 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-28376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28376?: CVE-2026-28376 primarily affects Grafana. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-28376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28376 have an EU (EUVD) identifier?: Yes. CVE-2026-28376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-30138.
When was CVE-2026-28376 published?: CVE-2026-28376 was published on 2026-05-13 and last updated on 2026-06-17.

References

https://grafana.com/security/security-advisories/cve-2026-28376

Affected products (10)

cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:11.6.14:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:11.6.14:security01:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.2.8:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.2.8:security01:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.3.6:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.3.6:security01:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:12.4.3:-:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:grafana:grafana:13.0.1:-:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

196.188.187.85 (ipv4-addr)
167.172.93.203 (ipv4-addr)