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Full vulnerability report · 2021
CVE-2021-39226High confidence

Grafana Authentication Bypass Vulnerability

Grafana Labs · Grafana

Official source article: GitHub GHSA-69J6-29VR-P3J9 ↗. Check the applicable product and release in the original source.

9.8CriticalCVSS 3.1
Recommended action
Patch now

CISA confirms exploitation in the wild and lists 2022-09-15 as the remediation due date.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • CISA confirms exploitation in the wild.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 99.93% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Grafana Labs Grafana and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Open-source package ranges2 source-attributed ranges

These OSV and GitHub advisory ranges apply only to the named package and ecosystem. A listed fixed version is not a universal product patch or proof that an update is installed.

Ecosystem and packageAffected rangeFirst fixed versionEvidence
gogithub.com/grafana/grafana< 7.5.117.5.11GitHub advisory ↗upstream repository advisory · 22 Oct 2025
gogithub.com/grafana/grafana>= 8.0.0, < 8.1.68.1.6GitHub advisory ↗upstream repository advisory · 22 Oct 2025
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2021-39226 · CSAF 2.0 · revision 3 · status not statedRed Hat Product Securitygrafana: Snapshot authentication bypass
14 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • servicemesh-grafana as a component of OpenShift Service Mesh 1
  • servicemesh-grafana-prometheus as a component of OpenShift Service Mesh 1
  • servicemesh-grafana.src as a component of OpenShift Service Mesh 1
  • servicemesh-grafana as a component of OpenShift Service Mesh 2.0
  • servicemesh-grafana-prometheus as a component of OpenShift Service Mesh 2.0
  • servicemesh-grafana.src as a component of OpenShift Service Mesh 2.0
  • grafana as a component of Red Hat Ceph Storage 2
  • grafana.src as a component of Red Hat Ceph Storage 2
  • grafana as a component of Red Hat Ceph Storage 3
  • grafana-container as a component of Red Hat Ceph Storage 3
  • grafana.src as a component of Red Hat Ceph Storage 3
  • rhceph/rhceph-4-dashboard-rhel8 as a component of Red Hat Ceph Storage 4
Summary
An authentication bypass was found in grafana. An attacker on the network is able to view and delete snapshots by accessing a literal path.
Remediation
For OpenShift Container Platform 3.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/3.11/upgrading/index.html
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2021-2169

CISA KEV mirrored by ENISA

Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are able to view the snapshot with the lowest database key by accessing the literal paths: /dashboard/snapshot/:key, or /api/snapshots/:key. If the snapshot "public_mode" configuration setting is set to true (vs default of false), unauthenticated users are able to delete the snapshot with the lowest database key by accessing the literal path: /api/snapshots-delete/:deleteKey. Regardless of the snapshot "public_mode" setting, authenticated users are able to delete the snapshot with the lowest database key by accessing the literal paths: /api/snapshots/:key, or /api/snapshots-delete/:deleteKey. The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 25 Aug 2022. Evidence sources: cisa_kev.
ENISA score
9.8 · CVSS 3.1
Advisory evidence
21 linked advisory records
Explicit mitigation evidence

Only statements that explicitly mention a fix, patch, update, workaround or mitigation are shown here.

  • csaf_suse · SUSE-SU-2022:1396-1Security update for SUSE Manager Client Tools
  • csaf_suse · SUSE-FU-2022:1419-1Feature update for grafana
  • csaf_redhat · RHSA-2022:6317Red Hat Security Advisory: OpenShift Container Platform 4.9.48 bug fix and security update
  • csaf_suse · SUSE-SU-2022:0139-1Security update for grafana
  • csaf_suse · SUSE-SU-2022:0138-1Security update for grafana
  • csaf_suse · SUSE-SU-2022:2134-1Security update for SUSE Manager Client Tools
  • csaf_redhat · RHSA-2022:6322Red Hat Security Advisory: OpenShift Container Platform 4.7.59 bug fix and security update
  • csaf_opensuse · openSUSE-SU-2022:0140-1Security update for grafana
  • csaf_redhat · RHSA-2022:6252Red Hat Security Advisory: OpenShift Container Platform 3.11.784 security update
  • csaf_redhat · RHSA-2022:6262Red Hat Security Advisory: OpenShift Container Platform 4.6.61 bug fix and security update
  • csaf_redhat · RHSA-2021:3770Red Hat Security Advisory: grafana security update
  • csaf_redhat · RHSA-2021:3771Red Hat Security Advisory: grafana security update
  • csaf_redhat · RHSA-2022:0056Red Hat Security Advisory: OpenShift Container Platform 4.10.3 security update
  • csaf_redhat · RHSA-2021:3769Red Hat Security Advisory: grafana security update
  • csaf_suse · SUSE-SU-2022:3425-1Security update for grafana
  • csaf_suse · SUSE-SU-2024:0191-1Security Beta update for SUSE Manager Client Tools
  • csaf_suse · SUSE-SU-2022:3339-1Security update for ardana-ansible, ardana-cobbler, ardana-tempest, grafana, openstack-heat-templates, openstack-horizon-plugin-gbp-ui, openstack-neutron-gbp, openstack-nova, python-Django1, rabbitmq-server, rubygem-puma
  • csaf_suse · SUSE-SU-2022:3338-1Security update for ardana-ansible, ardana-cobbler, grafana, openstack-heat-templates, openstack-murano, python-Django, rabbitmq-server, rubygem-puma
  • csaf_redhat · RHSA-2022:6308Red Hat Security Advisory: OpenShift Container Platform 4.8.49 security update
Recommended actionPatch now

CISA confirms exploitation in the wild and lists 2022-09-15 as the remediation due date.

Patch available
01

What, why and how

Grafana contains an authentication bypass vulnerability that allows authenticated and unauthenticated users to view and delete all snapshot data, potentially resulting in complete snapshot data loss.

What

Grafana contains an authentication bypass vulnerability that allows authenticated and unauthenticated users to view and delete all snapshot data, potentially resulting in complete snapshot data loss.

Why

The affected component does not establish the requesting party's identity reliably before granting access.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may bypass an access boundary or take over an account.

What

Grafana contains an authentication bypass vulnerability that allows authenticated and unauthenticated users to view and delete all snapshot data, potentially resulting in complete snapshot data loss.

Why

The affected component does not establish the requesting party's identity reliably before granting access.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may bypass an access boundary or take over an account.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2022-08-25.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Improper Authentication → bypass an access boundary or take over an account
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-287 ↗

CWE-287: Improper Authentication. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
Stolen credentials, tokens and legitimate administration functions may provide continued access without deploying a large custom toolset.
NetworkUnauthenticatedCWE-287CISA KEVPublic exploit reference
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2021-2169Known-exploited evidence recorded

Grafana is an open source data visualization platform. In affected versions unauthenticated and authenticated users are able to view the snapshot with the lowest database key by accessing the literal paths: /dashboard/snapshot/:key, or /api/snapshots/:key. If the snapshot "public_mode" configuration setting is set to true (vs default of false), unauthenticated users are able to delete the snapshot with the lowest database key by accessing the literal path: /api/snapshots-delete/:deleteKey. Regardless of the snapshot "public_mode" setting, authenticated users are able to delete the snapshot with the lowest database key by accessing the literal paths: /api/snapshots/:key, or /api/snapshots-delete/:deleteKey. The combination of deletion and viewing enables a complete walk through all snapshot data while resulting in complete snapshot data loss. This issue has been resolved in versions 8.1.6 and 7.5.11. If for some reason you cannot upgrade you can use a reverse proxy or similar to block access to the literal paths: /api/snapshots/:key, /api/snapshots-delete/:deleteKey, /dashboard/snapshot/:key, and /api/snapshots/:key. They have no normal function and can be disabled without side effects.

Official EUVD record ↗
BSI · German · WID-SEC-2022-0401Grafana: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Grafana ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

Official advisory ↗
Cyber Security Agency of Singapore · English · CSA-SB-20211006Security Bulletin 06 Oct 2021

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 06 Oct 2021, published on 6 October 2021. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-021127Grafana Labs の Grafana 等複数ベンダの製品における認証に関する脆弱性

Grafana Labs の Grafana 等複数ベンダの製品には、認証に関する脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5710현재 악용되고 있는 Exploit(Update. 2022-08-25)

Grafana contains an authentication bypass vulnerability that allows authenticated and unauthenticated users to view and delete all snapshot data, potentially resulting in complete snapshot data loss.

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
Fixed
Action
For OpenShift Container Platform 3.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/3.11/upgrading/index.html
Workaround
A mitigation or workaround reference is available from the source linked below; validate it against the affected product and version.
04

Evidence and provenance

Published 5 Oct 2021 · Last source change 21 Oct 2025, 23:25 UTC · CWE-287 · Improper Authentication

CVE recordCVE.org · 5.1
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2021-2169
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    grafana: >= 8.0.0, < 8.1.6, < 7.5.11 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    grafana: >= 8.0.0, < 8.1.6, < 7.5.11 · Fixed: For OpenShift Container Platform 3.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/3.11/upgrading/index.html
    Red Hat Product Security ↗
  2. Vendor guidanceAuthoritative vendor guidance changed: added remediation: github.com/2d456a6375855364d098ede379438bf7f0667269; removed remediation: access.redhat.com/CVE-2021-39226.
    Before
    mitigation: github.com/GHSA-69j6-29vr-p3j9 · patch: github.com/2d456a6375855364d098ede379438bf7f0667269 · remediation: access.redhat.com/CVE-2021-39226
    After
    mitigation: github.com/GHSA-69j6-29vr-p3j9 · patch: github.com/2d456a6375855364d098ede379438bf7f0667269 · remediation: github.com/2d456a6375855364d098ede379438bf7f0667269
    github.com ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    grafana: >= 8.0.0, < 8.1.6, < 7.5.11 · Fixed: For OpenShift Container Platform 3.11 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html Details on how to access this content are available at https://docs.openshift.com/container-platform/3.11/upgrading/index.html
    After
    grafana: >= 8.0.0, < 8.1.6, < 7.5.11 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CISA KEV ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    >= 8.0.0, < 8.1.6; < 7.5.11 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    grafana: >= 8.0.0, < 8.1.6, < 7.5.11 · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2021-2169↗Red Hat Product Security security advisory↗CISA KEV record↗Public exploit reference · GitHub GHSA-69J6-29VR-P3J9↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2021-39226 · cve.blacktree.nl