CVE-2021-43813
Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for fully lowercase or fully uppercase .md files.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 57.1%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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 3.1
- 4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 57.08% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- grafana/grafana
- Source
- security-advisories@github.com
EPSS 57.1% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2021/12/10/4Mailing List, Patch, Release Notes, Third Party Advisory
- https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0fBroken Link
- https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308dPatch, Third Party Advisory
- https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2qPatch, Release Notes, Third Party Advisory
- https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/Patch, Release Notes, Vendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/Release Notes, Vendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/Release Notes, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220107-0006/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/12/10/4Mailing List, Patch, Release Notes, Third Party Advisory
- https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0fBroken Link
- https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308dPatch, Third Party Advisory
- https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2qPatch, Release Notes, Third Party Advisory
- https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/Patch, Release Notes, Vendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/Release Notes, Vendor Advisory
- https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/Release Notes, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20220107-0006/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.