How severe is CVE-2026-33375?

CVE-2026-33375 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-2026-33375 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33375?

CVE-2026-33375 affects Grafana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33375?

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

Does CVE-2026-33375 have an EU (EUVD) identifier?

Yes. CVE-2026-33375 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16351.

When was CVE-2026-33375 published?

CVE-2026-33375 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-33375

CVE-2026-33375 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16351
Weakness: CWE-400
Affected product: Grafana
Published: 2026-03-26
Last modified: 2026-06-17

Description

The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API restrictions and trigger a catastrophic Out-Of-Memory (OOM) memory exhaustion, crashing the host container.

Frequently asked questions

What is CVE-2026-33375?: The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API restrictions and trigger a catastrophic Out-Of-Memory (OOM) memory exhaustion, crashing the host container.
How severe is CVE-2026-33375?: CVE-2026-33375 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-2026-33375 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33375?: CVE-2026-33375 affects Grafana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33375?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33375 have an EU (EUVD) identifier?: Yes. CVE-2026-33375 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16351.
When was CVE-2026-33375 published?: CVE-2026-33375 was published on 2026-03-26 and last updated on 2026-06-17.

References

https://grafana.com/security/security-advisories/cve-2026-33375

Affected products (1)

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

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Threat intelligence

Threat-intel indicators referencing this CVE:

150.5.154.160 (ipv4-addr)
167.172.93.203 (ipv4-addr)
104.248.169.81 (ipv4-addr)
52.140.76.154 (ipv4-addr)