{"id":"GHSA-f74p-cwhp-x2wx","summary":"Grafana Loki datasource plugin's callResource handler contains a path traversal vulnerability.","details":"The Loki datasource plugin's callResource handler contains a path traversal vulnerability. An authenticated Viewer-role user can escape the plugin's resource sandbox and access administrative Loki endpoints (e.g. /config, /services, /ready) to extract sensitive backend configuration and internal service information.","aliases":["CVE-2026-42129","GO-2026-6544"],"modified":"2026-09-28T17:10:47.137426029Z","published":"2026-06-22T15:30:43Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2026-09-21T22:54:43Z","nvd_published_at":"2026-06-22T14:17:36Z","cwe_ids":["CWE-22"]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42129"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/3fcdbc5a6e5c955bd42bd3715dd03cbad2b078c1"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/42cdc39124912a8506a0c613c319c345aa950b29"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/82ef13993059351bf21de35b8488bbd9b42df4f4"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/d27d2eba9c509d16f214d290436a6ad0bd9c6c01"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/dd5dc51681ff0133ddb2e206c2ea318713aeca16"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/eeb08ceb020c4381242d8400e5878044e9877505"},{"type":"WEB","url":"https://github.com/grafana/grafana/commit/f70d3e480274a5dbd12006338c393f4b05d441ca"},{"type":"PACKAGE","url":"https://github.com/grafana/grafana"},{"type":"WEB","url":"https://github.com/grafana/grafana/releases/tag/v11.6.15"},{"type":"WEB","url":"https://github.com/grafana/grafana/releases/tag/v12.2.9"},{"type":"WEB","url":"https://github.com/grafana/grafana/releases/tag/v12.3.7"},{"type":"WEB","url":"https://github.com/grafana/grafana/releases/tag/v12.4.4"},{"type":"WEB","url":"https://github.com/grafana/grafana/releases/tag/v13.0.2"},{"type":"WEB","url":"https://grafana.com/security/security-advisories/cve-2026-42129"}],"affected":[{"package":{"name":"github.com/grafana/grafana","ecosystem":"Go","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0-beta1"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 11.6.15","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f74p-cwhp-x2wx/GHSA-f74p-cwhp-x2wx.json"}},{"package":{"name":"github.com/grafana/grafana","ecosystem":"Go","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"12.0.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 12.2.9","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f74p-cwhp-x2wx/GHSA-f74p-cwhp-x2wx.json"}},{"package":{"name":"github.com/grafana/grafana","ecosystem":"Go","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"12.3.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 12.3.7","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f74p-cwhp-x2wx/GHSA-f74p-cwhp-x2wx.json"}},{"package":{"name":"github.com/grafana/grafana","ecosystem":"Go","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"13.0.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 13.0.2","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f74p-cwhp-x2wx/GHSA-f74p-cwhp-x2wx.json"}},{"package":{"name":"github.com/grafana/grafana","ecosystem":"Go","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"12.4.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 12.4.4","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f74p-cwhp-x2wx/GHSA-f74p-cwhp-x2wx.json"}},{"package":{"name":"github.com/grafana/grafana","ecosystem":"Go","purl":"pkg:golang/github.com/grafana/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.9.2-0.20260616075434-82ef13993059"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-f74p-cwhp-x2wx/GHSA-f74p-cwhp-x2wx.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"}]}