CVE-2021-43813
mediumpriority · track · 37EPSS 0.571 · 99 %ileDEEUUSEPSS · scored 2026-10-27
Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for fully lowercase or fully uppercase .md files. The vulnerability is limited in scope, and only allows access to files with the extension .md to authenticated users only. Grafana Cloud instances have not been affected by the vulnerability. Users should upgrade to patched versions 8.3.2 or 7.5.12. For users who cannot upgrade, running a reverse proxy in front of Grafana that normalizes the PATH of the request will mitigate the vulnerability. The proxy will have to also be able to handle url encoded paths. Alternatively, for fully lowercase or fully uppercase .md files, users can block /api/plugins/.*/markdown/.* without losing any functionality beyond inlined plugin help text.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
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affected products (10)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2022-0405Grafana: Mehrere Schwachstellen ermöglichen Offenlegung von InformationenDeutsch2021-12-12csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Grafana ausnutzen, um Informationen offenzulegen.
- BIT-grafana-2021-43813Directory Traversal in Grafana2024-03-06vendor · osvUS
Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for fully lowercase or fully uppercase .md files. The vulnerability is limited in scope, and only allows access to files with the extension .md to authenticated users only. Grafana Cloud instances have not been affected by the vulnerability. Users should upgrade to patched versions 8.3.2 or 7.5.12. For users who cannot upgrade, running a reverse proxy in front of Grafana that normalizes the PATH of the request will mitigate the vulnerability. The proxy will have to also be able to handle url encoded paths. Alternatively, for fully lowercase or fully uppercase .md files, users can block /api/plugins/.*/markdown/.* without losing any functionality beyond inlined plugin help text.
also known as (3)
Other names and identifiers for this entity.
sources
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references (36)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2021/12/10/4cnnvd
- https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0fcnnvd
- https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308dcnnvd
- https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2qcnnvd
- https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/cnnvd
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/cnnvd
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-43813cnnvd
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