Grafana path traversal

Exploitation

Confirmed: listed in the CISA Known Exploited Vulnerabilities catalog.

CVSS

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

EPSS

• CVE-2021-43798: 88.50% estimated exploitation activity in the next 30 days; percentile 99.77 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Today we are releasing Grafana 8.3.1, 8.2.7, 8.1.8, 8.0.7. This patch release includes a high severity security fix that affects Grafana versions from v8.0.0-beta1 through v8.3.0. Release v8.3.1, only containing a security fix: - Download Grafana 8.3.1 - Release notes Release v8.2.7, only containing a security fix: - Download Grafana 8.2.7 - Release notes Release v8.1.8, only containing a security fix: - Download Grafana 8.1.8 - Release notes Release v8.0.7, only containing a security fix: - Download Grafana 8.0.7 - Release notes Path Traversal (CVE-2021-43798) Summary On 2021-12-03, we received a report that Grafana is vulnerable to directory traversal, allowing access to local files. We have confirmed this for versions 8.0.0-beta1 to 8.3.0. Thanks to our defense-in-depth approach, at no time has Grafana Cloud been vulnerable. The vulnerable URL path is: <grafanahosturl/public/plugins/<plugin-id/, where <plugin-id is the plugin ID for any installed plugin. Every Grafana instance…

Published by the source

1 Feb 2024, 00:16 UTC

Last modified by the source

22 Oct 2025, 19:08 UTC

Source last checked

26 Oct 2026, 15:13 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-8pjx-jj86-j47p

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# Patch Next advisory brief: CVE-2021-43798

Advisory: Grafana path traversal
IDs: CVE-2021-43798, GHSA-8pjx-jj86-j47p
Record: https://patchnext.com/advisories/cve-2021-43798 (revision 1, source checked 26 Oct 2026, 15:13 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.5)
Exploitation: confirmed: listed in the CISA Known Exploited Vulnerabilities catalog.
Vendor response: Vendor fix available; fixed versions by package: github.com/grafana/grafana 8.3.1, 8.2.7, 8.1.8, 8.0.7. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/grafana/grafana: affected >= 8.3.0, < 8.3.1; >= 8.2.0, < 8.2.7; >= 8.1.0, < 8.1.8; >= 8.0.0-beta1, < 8.0.7; fixed in 8.0.7, 8.3.1, 8.1.8, 8.2.7

## Suggested inspection (read-only)
- Go github.com/grafana/grafana: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/grafana/grafana.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://www.cisa.gov/known-exploited-vulnerabilities-catalog (CISA added CVE-2021-43798 to the Known Exploited Vulnerabilities catalog on 2025-10-09.)
- Verified: https://github.com/advisories/GHSA-8pjx-jj86-j47p (GitHub-reviewed advisory GHSA-8pjx-jj86-j47p lists affected ranges: Go github.com/grafana/grafana >=8.3.0 =8.2.0 =8.1.0 =8.0.0-beta1 <8.0.7)

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