How severe is CVE-2026-27877?

CVE-2026-27877 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 high, integrity none, and availability none.

Is CVE-2026-27877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27877?

CVE-2026-27877 affects Grafana. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27877?

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

Does CVE-2026-27877 have an EU (EUVD) identifier?

Yes. CVE-2026-27877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16596.

When was CVE-2026-27877 published?

CVE-2026-27877 was published on 2026-03-27 and last updated on 2026-06-30.

CVE-2026-27877

CVE-2026-27877 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-312.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16596
Weakness: CWE-312
Affected product: Grafana
Published: 2026-03-27
Last modified: 2026-06-30

Description

When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards. No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security.

Frequently asked questions

What is CVE-2026-27877?: When using public dashboards and direct data-sources, all direct data-sources' passwords are exposed despite not being used in dashboards. No passwords of proxied data-sources are exposed. We encourage all direct data-sources to be converted to proxied data-sources as far as possible to improve your deployments' security.
How severe is CVE-2026-27877?: CVE-2026-27877 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 high, integrity none, and availability none.
Is CVE-2026-27877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27877?: CVE-2026-27877 affects Grafana. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27877?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27877 have an EU (EUVD) identifier?: Yes. CVE-2026-27877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16596.
When was CVE-2026-27877 published?: CVE-2026-27877 was published on 2026-03-27 and last updated on 2026-06-30.

References

Affected products (1)

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

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Threat intelligence

Threat-intel indicators referencing this CVE:

139.99.217.78 (ipv4-addr)