{"id":"CVE-2026-42129","sourceIdentifier":"security@grafana.com","published":"2026-06-22T14:17:36.340","lastModified":"2026-07-10T16:16:31.113","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security@grafana.com","affectedData":[{"vendor":"Grafana","product":"Grafana OSS","defaultStatus":"unaffected","versions":[{"version":"11.6.0","lessThanOrEqual":"11.6.14","versionType":"semver","status":"affected"},{"version":"12.2.0","lessThanOrEqual":"12.2.8","versionType":"semver","status":"affected"},{"version":"12.3.0","lessThanOrEqual":"12.3.6","versionType":"semver","status":"affected"},{"version":"12.4.0","lessThanOrEqual":"12.4.3","versionType":"semver","status":"affected"},{"version":"13.0.0","lessThanOrEqual":"13.0.1","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security@grafana.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.1,"impactScore":4.0}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-22T15:44:32.401117Z","id":"CVE-2026-42129","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security@grafana.com","type":"Secondary","description":[{"lang":"en","value":"CWE-22"}]},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","description":[{"lang":"en","value":"CWE-22"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:grafana:loki_datasource:-:*:*:*:*:*:*:*","matchCriteriaId":"AC9FBA76-8620-4AE4-85A3-AB43E19A6331"}]}]}],"references":[{"url":"https://grafana.com/security/security-advisories/cve-2026-42129","source":"security@grafana.com","tags":["Broken Link"]}]}