CVE-2026-27877Network attack vector

Direct data-source password disclosure through public dashboards

Published Mar 27, 2026 · Updated Mar 27, 2026

Information disclosure in affected Grafana releases allows remote authenticated users to read direct data-source passwords through public dashboards. The public-dashboard path includes every direct-mode data-source password even when the dashboard never references that source; Grafana Labs has not published the responsible function. A low-privileged Grafana account and at least one public dashboard plus a direct-mode data source are required, and proxied data-source passwords are not exposed.

CVSS severity6.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in affected Grafana releases allows remote authenticated users to read direct data-source passwords through public dashboards. The public-dashboard path includes every direct-mode data-source password even when the dashboard never references that source; Grafana Labs has not published the responsible function. A low-privileged Grafana account and at least one public dashboard plus a direct-mode data source are required, and proxied data-source passwords are not exposed.

The record

CVE
CVE-2026-27877
Published
Mar 27, 2026
Updated
Mar 27, 2026
Vendor
Grafana Labs
Product
Grafana
Classifications
CWE-312, CWE-201, T1552
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v12.0.0 <v12.1.10
  2. Affected versionversion=v12.2.0 <v12.2.8
  3. Affected versionversion=v12.3.0 <v12.3.6
  4. Affected versionversion=v12.4.0 <v12.4.2
  5. Affected versionversion=v9.3.0 <v11.6.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grafana Labs · Grafanaversion=v12.0.0 <v12.1.10; version=v12.2.0 <v12.2.8; version=v12.3.0 <v12.3.6; version=v12.4.0 <v12.4.2; version=v9.3.0 <v11.6.14

Published CVSS scores

6.5Grafana LabsCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5redhat-SADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
CWE-201Insertion of Sensitive Information Into Sent Data
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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