CVE-2021-43798

CVE-2021-43798 is a high-severity vulnerability in Grafana with a CVSS 3.x base score of 7.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-10-09). The underlying weakness is classified as CWE-22.

Key facts

Description

Grafana is an open-source platform for monitoring and observability. Grafana versions 8.0.0-beta1 through 8.3.0 (except for patched versions) iss vulnerable to directory traversal, allowing access to local files. The vulnerable URL path is: `<grafana_host_url>/public/plugins//`, where is the plugin ID for any installed plugin. At no time has Grafana Cloud been vulnerable. Users are advised to upgrade to patched versions 8.0.7, 8.1.8, 8.2.7, or 8.3.1. The GitHub Security Advisory contains more information about vulnerable URL paths, mitigation, and the disclosure timeline.

Frequently asked questions

What is CVE-2021-43798?
Grafana is an open-source platform for monitoring and observability. Grafana versions 8.0.0-beta1 through 8.3.0 (except for patched versions) iss vulnerable to directory traversal, allowing access to local files. The vulnerable URL path is: `<grafana_host_url>/public/plugins//`, where is the plugin ID for any installed plugin. At no time has Grafana Cloud been vulnerable. Users are advised to upgrade to patched versions 8.0.7, 8.1.8, 8.2.7, or 8.3.1. The GitHub Security Advisory contains more information about vulnerable URL paths, mitigation, and the disclosure timeline.
How severe is CVE-2021-43798?
CVE-2021-43798 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-43798 being actively exploited?
Yes. CVE-2021-43798 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-10-09, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2021-43798?
CVE-2021-43798 primarily affects Grafana. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-43798?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2021-43798 have an EU (EUVD) identifier?
Yes. CVE-2021-43798 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0581. It is also flagged as exploited in the EUVD (since 2025-10-09).
When was CVE-2021-43798 published?
CVE-2021-43798 was published on 2021-12-07 and last updated on 2026-06-17.

References

Affected products (5)

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