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GrafanaApplication

CVE-2021-27962

HIGH · 7.1 CVSS v3.1 Published 2021-03-22
Fix available
A fix is available. Upgrade to 7.3.10 / 7.4.5 or later.
See remediation →
77/100
Remediation priority · High
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Grafana Enterprise 7.2.x and 7.3.x before 7.3.10 and 7.4.x before 7.4.5 allows a dashboard editor to bypass a permission check concerning a data source they should not be able to access.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A broken access control vulnerability in Grafana Enterprise allows dashboard editors to bypass permission checks and access data sources they should not have permission to access. This is a privilege escalation issue where users with limited dashboard editing permissions can circumvent data source access controls.

MitigationUpgrade Grafana Enterprise to version 7.3.10, 7.4.5, or later to resolve the permission bypass vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
GrafanaApplication
Affected:>= 7.2.0, < 7.3.10>= 7.4.0, < 7.4.5

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check installed Grafana version
    Run `grafana-server -v` or look in the Grafana UI under Administration > Server Info to find the exact version number
    Affected if The version is >= 7.2.0 and < 7.3.10, OR >= 7.4.0 and < 7.4.5
  2. Confirm Grafana Enterprise edition
    Check Administration > Server Info in the Grafana UI or look for Enterprise-specific features enabled (such as advanced authentication or data source permissions)
    Affected if Running Grafana Enterprise edition (not open source Grafana)
  3. Verify data source permission controls are in use
    Inspect data source configurations under Configuration > Data Sources and check if Access Control or Permissions are configured to restrict access
    Affected if Data sources have permission restrictions configured that limit access to certain users or teams
  4. Identify dashboard editor users
    Review user roles and permissions under Server Admin > Users or Organization Users, looking for users with Editor role
    Affected if There are users with Dashboard Editor or Editor role who should have limited data source access

You are affected if running Grafana Enterprise within the version range 7.2.0 to 7.3.9 or 7.4.0 to 7.4.4 and data sources have permission restrictions that dashboard editors should not bypass.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to 7.3.10 / 7.4.5 or later
Fixed in 7.3.107.4.5
Interim mitigation

Upgrade Grafana Enterprise to version 7.3.10, 7.4.5, or later to resolve the permission bypass vulnerability.

Fix this in Grafana Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing6.0 h
  • Review / QA3.0 h
15.0 hours of engineering $2,560
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,096.

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-27962 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data