---
title: "CVE-2021-43798: Grafana Path Traversal Vulnerability"
url: https://erroneo.us/security/cve/CVE-2021-43798/
description: "CVE-2021-43798 (Grafana Labs Grafana): Exploited in the wild (CISA KEV). Grafana is an open-source platform for monitoring and observability. Grafana…"
type: vulnerability-record
section: "Security Digest"
date_published: 2021-12-07
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2021-43798"
kev: true
cvss: 7.5
epss: 0.88503
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2021-43798: Grafana Path Traversal Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run Grafana Labs Grafana. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-10-09, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-10-30 ; treat that as the outer limit, not the target.
- EPSS 88.5% , percentile 99.8: FIRST’s model estimates a 88.5% chance of exploitation activity in the next 30 days, higher than 99.8% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

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: /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.

## Affected products (CVE record)

- grafana grafana: >= 8.0.0, < 8.0.7, >= 8.1.0, < 8.1.8, >= 8.2.0, < 8.2.7, = 8.3.0

## Severity

- GitHub_M CVSS 3.1: 7.5 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`

## Exploitation

- CISA KEV: added 2025-10-09; federal due date 2025-10-30. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 88.50% probability of exploitation activity in the next 30 days; percentile 99.8.

## Sources

- [Listed in CISA KEV notes (grafana.com)](https://grafana.com/blog/2021/12/07/grafana-8.3.1-8.2.7-8.1.8-and-8.0.7-released-with-high-severity-security-fix/)
- [CVE.org record CVE-2021-43798](https://www.cve.org/CVERecord?id=CVE-2021-43798)
- [NVD entry CVE-2021-43798](https://nvd.nist.gov/vuln/detail/CVE-2021-43798)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-43798)
- [github.com](https://github.com/grafana/grafana/security/advisories/GHSA-8pjx-jj86-j47p)
- [github.com](https://github.com/grafana/grafana/commit/c798c0e958d15d9cc7f27c72113d572fa58545ce)
- [packetstormsecurity.com](http://packetstormsecurity.com/files/165198/Grafana-Arbitrary-File-Reading.html)
- [grafana.com](https://grafana.com/blog/2021/12/08/an-update-on-0day-cve-2021-43798-grafana-directory-traversal/)
- [packetstormsecurity.com](http://packetstormsecurity.com/files/165221/Grafana-8.3.0-Directory-Traversal-Arbitrary-File-Read.html)
- [[oss-security] 20211209 CVE-2021-43798 Grafana directory traversal](http://www.openwall.com/lists/oss-security/2021/12/09/2)
- [[oss-security] 20211210 CVE-2021-43813 and CVE-2021-43815 - Grafana directory traversal for some .md and .csv files](http://www.openwall.com/lists/oss-security/2021/12/10/4)
- [security.netapp.com](https://security.netapp.com/advisory/ntap-20211229-0004/)

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Source page: https://erroneo.us/security/cve/CVE-2021-43798/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt