CVE-2021-27358
HighExploitedDenial of service in Grafana
Published Feb 15, 2022 · Updated Sep 8, 2026 · Also known as BIT-grafana-2021-27358, GHSA-h5rh-w6vm-9ghc, SUSE-SU-2021:2660-1, UBUNTU-CVE-2021-27358
Key Facts
Patch immediately- CVE-2021-27358 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Grafana, E-Series Performance Analyzer (Netapp), github.com/grafana/grafana (go) and 22 more products.
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since May 1, 2026. No public exploit code is known.
- EPSS estimates a 83% probability of exploitation in the next 30 days.
- Fixed versions are available, including ardana-cobbler 8.0+git.1614096566.e8c2b27-3.44.3, ardana-neutron 9.0+git.1615223676.777f0b3-3.25.2, ardana-swift 9.0+git.1618235096.90974ed-3.10.2.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
83%
Higher than 99.6% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings
Public exploit code
None known
Get the full CVE-2021-27358 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
The snapshot feature in Grafana 6.7.3 through 7.4.1 can allow an unauthenticated remote attackers to trigger a Denial of Service via a remote API call if a commonly used configuration is set.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | May 1, 2026 | n/a | Not reported |
| CIRCL KEV | May 1, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
432 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| GrafanaGrafana | >= 6.7.3 | 7.4.1 |
| E-Series Performance AnalyzerNetapp | See advisory | n/a |
| github.com/grafana/grafanago | >= 6.7.3 | 7.4.2 |
| ardana-cobblersuse | See advisory | 8.0+git.1614096566.e8c2b27-3.44.3 |
| ardana-neutronsuse | See advisory | 9.0+git.1615223676.777f0b3-3.25.2 |
Patched Releases
ardana-cobbler
8.0+git.1614096566.e8c2b27-3.44.3
ardana-neutron
9.0+git.1615223676.777f0b3-3.25.2
ardana-swift
9.0+git.1618235096.90974ed-3.10.2
cassandra
3.11.10-3.3.3, 3.11.10-5.3.5
cassandra-tools
3.11.10-3.3.3, 3.11.10-5.3.5
crowbar-core
5.0+git.1622489449.a8e60e238-3.50.4
crowbar-core-branding-upstream
5.0+git.1622489449.a8e60e238-3.50.4
crowbar-openstack
4.0+git.1616146720.44daffca0-9.81.2, 5.0+git.1616001417.67fd9c2a1-4.52.5, 6.0+git.1616146717.a89ae0f4e-3.34.4
documentation-hpe-helion-openstack-installation
8.20210512-1.32.5
documentation-hpe-helion-openstack-operations
8.20210512-1.32.5
documentation-hpe-helion-openstack-opsconsole
8.20210512-1.32.5
documentation-hpe-helion-openstack-planning
8.20210512-1.32.5
documentation-hpe-helion-openstack-security
8.20210512-1.32.5
documentation-hpe-helion-openstack-user
8.20210512-1.32.5
documentation-suse-openstack-cloud-deployment
8.20210512-1.32.5
documentation-suse-openstack-cloud-installation
8.20210512-1.32.5
documentation-suse-openstack-cloud-operations
8.20210512-1.32.5
documentation-suse-openstack-cloud-opsconsole
8.20210512-1.32.5
documentation-suse-openstack-cloud-planning
8.20210512-1.32.5
documentation-suse-openstack-cloud-security
8.20210512-1.32.5
documentation-suse-openstack-cloud-supplement
8.20210512-1.32.5
documentation-suse-openstack-cloud-upstream-admin
8.20210512-1.32.5
documentation-suse-openstack-cloud-upstream-user
8.20210512-1.32.5
documentation-suse-openstack-cloud-user
8.20210512-1.32.5
github.com/grafana/grafana
7.4.2
Timeline
Publicly disclosed
Feb 15, 2022
Added to Industry KEV feed
May 1, 2026
Added to CIRCL KEV
May 1, 2026
Last updated
Sep 8, 2026
Weakness Type
- CWE-306 Missing Authentication for Critical Function
- CWE-400 Uncontrolled Resource Consumption
- CWE-770 Allocation of Resources Without Limits or Throttling
References
- advisoryRHSA-2021:4226
- advisoryhttps://bugzilla.suse.com/1019074
- advisoryhttps://bugzilla.suse.com/1044849
- advisoryhttps://bugzilla.suse.com/1048688
- advisoryhttps://bugzilla.suse.com/1057496
FAQ
Common Questions.
The snapshot feature in Grafana 6.7.3 through 7.4.1 can allow an unauthenticated remote attackers to trigger a Denial of Service via a remote API call if a commonly used configuration is set.
Affected: Grafana versions >= 6.7.3; E-Series Performance Analyzer (Netapp); github.com/grafana/grafana (go) versions >= 6.7.3, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since May 1, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including ardana-cobbler 8.0+git.1614096566.e8c2b27-3.44.3, ardana-neutron 9.0+git.1615223676.777f0b3-3.25.2, ardana-swift 9.0+git.1618235096.90974ed-3.10.2.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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