Security readout for executives and security teams
CVE-2021-43798 lets unauthenticated attackers read local files from vulnerable self-hosted Grafana servers. That can expose secrets, configuration, or other sensitive host data. Grafana Cloud was not vulnerable. The issue is high priority because patched versions exist and CISA lists the CVE in its Known Exploited Vulnerabilities catalog. Exposure is likely where self-hosted Grafana 8.0.x, 8.1.x, 8.2.x, or 8.3.0 is reachable by users or the internet. Grafana Cloud is explicitly stated as not vulnerable. Downstream products embedding Grafana require vendor-specific confirmation. Treat as urgent remediation for self-hosted Grafana because it can expose sensitive local files without authentication and is listed by CISA as known exploited. Patch first, then investigate logs for evidence of prior access. Mitigation focus: Upgrade Grafana to 8.0.7, 8.1.8, 8.2.7, 8.3.1, or later.; Prioritize internet-facing and unauthenticated self-hosted Grafana instances first.; Check Grafana’s advisory for any interim mitigation appropriate to your deployment..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-43798 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/grafana/grafana/security/advisories/GHSA-8pjx-jj86-j47pCVE reference · x_refsource_CONFIRM
- https://github.com/grafana/grafana/commit/c798c0e958d15d9cc7f27c72113d572fa58545ceCVE reference · x_refsource_MISC
- https://grafana.com/blog/2021/12/08/an-update-on-0day-cve-2021-43798-grafana-directory-traversal/CVE reference · x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20211229-0004/CVE reference · x_refsource_CONFIRM
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-43798CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.