Is CVE-2026-27877 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-27877 being exploited in the wild.

How severe is CVE-2026-27877?

Medium severity, with a CVSS score of 6.5, published 27 March 2026.

Which products and versions are affected?

github.com/grafana/grafana (Go) SEMVER:introduced=0, SEMVER:introduced=9.3.0.

Is there a fix for CVE-2026-27877?

A patch was published on 2026-04-23: Red Hat released updates for RHEL 9 and 10 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-27877 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-27877?

Check whether you run github.com/grafana/grafana (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-27877: Grafana information disclosure of data-source passwords in public dashboards

CVE-2026-27877 · Severity: medium · CVSS 6.5 · Published 2026-03-27

Grafana is a popular platform used for visualizing and monitoring data through dashboards. A security flaw in the 'public dashboards' feature allows unauthorized users to view the passwords of connected data sources if they are configured in 'direct' mode. This could allow an attacker to gain access to the underlying databases or services used by the organization, potentially leading to data theft or further network intrusion.

Technologies: github.com/grafana/grafana (Go). Vendors: Go.

Quick answers

Is CVE-2026-27877 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-27877 being exploited in the wild.
How severe is CVE-2026-27877?: Medium severity, with a CVSS score of 6.5, published 27 March 2026.
Which products and versions are affected?: github.com/grafana/grafana (Go) SEMVER:introduced=0, SEMVER:introduced=9.3.0.
Is there a fix for CVE-2026-27877?: A patch was published on 2026-04-23: Red Hat released updates for RHEL 9 and 10 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-27877 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-27877?: Check whether you run github.com/grafana/grafana (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An information disclosure vulnerability exists in Grafana's public dashboards feature. When a dashboard is made public and 'direct mode' data sources are configured, Grafana inadvertently exposes the credentials for all direct mode data sources in the environment, regardless of whether they are utilized by the public dashboard. This occurs because the application fails to properly filter or protect sensitive data-source metadata during the public session. The vulnerability does not affect 'proxied' data sources. Attackers with network access to a public dashboard can extract these credentials to gain unauthorized access to external databases. Patches are available in versions 11.6.14, 12.1.10, 12.2.8, 12.3.6, and 12.4.2.

Affected products

Grafana Labs Grafana <9.3.0, >=11.6.14 <12.0.0, >=12.1.10 <12.2.0, >=12.2.8 <12.3.0, >=12.3.6 <12.4.0, >=12.4.2

Identifiers

CVE-2026-27877
GHSA-3q27-7qjq-p9c5
GO-2026-5095

Timeline

2026-03-27: disclosed
2026-03-30: advisory
2026-04-23: patched: Red Hat released updates for RHEL 9 and 10

References

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