CVE-2021-27358

HIGHNVD 7.59.0▲Elevated

7.5

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.

CVSS v3: 7.5
EG Score: 9.0(high)
EPSS: 99.7%
KEV: Not listed

Published

March 18, 2021

Last Modified

November 21, 2024

References (8)

cve@mitrehttps://github.com/grafana/grafana/blob/master/CHANGELOG.md
cve@mitrehttps://github.com/grafana/grafana/blob/master/CHANGELOG.md#742-2021-02-17
cve@mitrehttps://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-2/
cve@mitrehttps://security.netapp.com/advisory/ntap-20210513-0007/
af854a3a-2127-422b-91ae-364da2661108https://github.com/grafana/grafana/blob/master/CHANGELOG.md
af854a3a-2127-422b-91ae-364da2661108https://github.com/grafana/grafana/blob/master/CHANGELOG.md#742-2021-02-17
af854a3a-2127-422b-91ae-364da2661108https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-4-2/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210513-0007/

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	grafana-0:7.5.9-4.el8	2021-11-09	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Go(1)

Package	Vulnerable range	Fixed in	Dependents
github.com/grafana/grafana	—	7.4.2	—

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Red HatRHSA-2021:4226MODERATE2021-02-17
RHSA-2021:4226 — Moderate

Data Freshness Timeline

(refreshed 0× in last 7d / 9× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 00:15 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-28 13:43 UTCEPSS rescore
2026-05-26 19:37 UTCEG score recompute
2026-05-26 19:37 UTCVendor advisory
2026-05-26 07:17 UTCEPSS rescore
2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2021/CVE-2021-27358.yaml
First seen Jan 1, 2021
Grafana Unauthenticated Snapshot Creation
Open source ↗

Frequently asked(5)

What is CVE-2021-27358?

CVE-2021-27358 is a high vulnerability published on March 18, 2021. 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.

When was CVE-2021-27358 disclosed?

CVE-2021-27358 was first published in the National Vulnerability Database on March 18, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-27358 actively exploited?

CVE-2021-27358 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27358?

CVE-2021-27358 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

How do I remediate CVE-2021-27358?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27358, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-27358

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