Vulnerability details
CVE-2026-42129
Grafana OSS
Path traversal in the Loki data source plugin
CVSS 3.1
7.7High
Official description
A user with Viewer permissions can use a path traversal in the Loki data source plugin to reach administrative Loki endpoints and read sensitive backend configuration and internal service information.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.7High | 3.1 | CVEProject cvelistV5 (CNA) (GRAFANA) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Grafana | Grafana OSS | 11.6.0 ≤ v ≤ 11.6.14 | CVEProject cvelistV5 (CNA) |
| Grafana | Grafana OSS | 12.2.0 ≤ v ≤ 12.2.8 | CVEProject cvelistV5 (CNA) |
| Grafana | Grafana OSS | 12.3.0 ≤ v ≤ 12.3.6 | CVEProject cvelistV5 (CNA) |
| Grafana | Grafana OSS | 12.4.0 ≤ v ≤ 12.4.3 | CVEProject cvelistV5 (CNA) |
| Grafana | Grafana OSS | 13.0.0 ≤ v ≤ 13.0.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1- https://grafana.com/security/security-advisories/cve-2026-42129 vendor-advisory
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Details
- Published
- 2026-06-22
- Last updated
- 2026-08-27
- State
- Published
- Assigner (CNA)
- GRAFANA
Exploit prediction (EPSS)
0.44%
Probability of exploitation in 30 days
38.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-22