{"id":"CVE-2026-42127","summary":"Pre-authentication denial of service in the public dashboard query endpoint","details":"The public dashboard query endpoint does not limit request body size before processing, allowing unauthenticated attackers to trigger excessive memory allocation by sending arbitrarily large JSON payloads. This can lead to denial of service through memory exhaustion. No valid dashboard access token or authentication is required to exploit this vulnerability.","aliases":["BIT-grafana-2026-42127","GHSA-3w66-95m3-8jxg","GO-2026-6541"],"modified":"2026-10-29T11:42:01.940356071Z","published":"2026-06-22T16:31:28.096Z","related":["ALSA-2026:54178","ALSA-2026:54184","ALSA-2026:54243","SUSE-SU-2026:4585-1","SUSE-SU-2026:4600-1","openSUSE-SU-2026:11332-1","openSUSE-SU-2026:22125-1"],"database_specific":{"unresolved_ranges":[{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"11.6.0"},{"last_affected":"11.6.14"},{"introduced":"12.2.0"},{"last_affected":"12.2.8"},{"introduced":"12.3.0"},{"last_affected":"12.3.6"},{"introduced":"12.4.0"},{"last_affected":"12.4.3"},{"introduced":"13.0.0"},{"last_affected":"13.0.1"},{"introduced":"11.6.0"},{"last_affected":"11.6.14"},{"introduced":"12.2.0"},{"last_affected":"12.2.8"},{"introduced":"12.3.0"},{"last_affected":"12.3.6"},{"introduced":"12.4.0"},{"last_affected":"12.4.3"},{"introduced":"13.0.0"},{"last_affected":"13.0.1"}]}]}],"cna_assigner":"GRAFANA","cwe_ids":["CWE-400"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42127.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42127.json"},{"type":"ADVISORY","url":"https://grafana.com/security/security-advisories/cve-2026-42127"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42127"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/grafana/grafana","events":[{"introduced":"0"},{"last_affected":"4da40799451631e6c8591c841282447cdf55be3d"},{"introduced":"92f1fba9b4b6700328e99e97328d6639df8ddc3d"},{"last_affected":"576f2e81b33bc857df779c95cb38effaa6c58b03"},{"introduced":"20051fb1fc604fc54aae76356da1c14612af41d0"},{"last_affected":"3b85eb0d9490f36d682e4fe55684f7da7b8b99b6"},{"introduced":"d1729c53a7f44e2e58947eb44eb896c2fb1c30b3"},{"last_affected":"86c83248f8739fbc178c0e5c451b44bdba7b5ed7"},{"introduced":"e9de482b5110e6e7310a18274c53a0d7d0eee6af"},{"last_affected":"a100054f212653d1f15ae4fc80e98c9548c77f86"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"last_affected":"11.6.14"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*"},{"range":[{"introduced":"12.2.0"},{"last_affected":"12.2.8"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*"},{"source":"CPE_RANGE","cpe":"cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*","range":[{"introduced":"12.3.0"},{"last_affected":"12.3.6"}]},{"range":[{"introduced":"12.4.0"},{"last_affected":"12.4.3"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*"},{"cpe":"cpe:2.3:a:grafana:grafana:*:*:*:*:enterprise:*:*:*","range":[{"introduced":"13.0.0"},{"last_affected":"13.0.1"}],"source":"CPE_RANGE"}]}}],"versions":["v13.0.1","v12.4.3","v12.4.2","v12.3.6","v11.6.14","v12.2.8","pkg/promlib/v0.0.11","v11.6.13","v12.2.7","v12.3.5","v12.4.1","pkg/promlib/v0.0.10","v12.3.4","v11.6.12","v12.2.6","v12.3.3","v12.2.5","v11.6.11","v12.3.2","v12.2.4","v11.6.10","pkg/promlib/v0.0.9","v12.2.3","v11.6.9","v12.3.1","v11.6.8","v12.2.2","v12.2.1","v11.6.7","v11.6.6","v11.6.5","v11.6.4","v11.6.2","v11.6.0","pkg/promlib/v0.0.8","pkg/promlib/v0.0.7","pkg/promlib/v0.0.6","pkg/promlib/v0.0.5","pkg/promlib/v0.0.4","pkg/promlib/v0.0.3","pkg/promlib/v0.0.2","pkg/promlib/v0.0.1","pkg/util/xorm/v0.0.1","v0.0.1-test","v10.0.0-preview","v0.0.0-cloud","v3.2.1-test","v8.5.16","v9.3.0-beta1","v8.4.0-beta1","v8.3.3","v6.5","v6.0.0-beta1","v5.,2.4","v5.0.0","v5.0.0-beta5","v5.0.0-beta4","v5.0.0-beta3","v5.0.0-beta2","v5.0.0-beta1","v4.6.0-beta1","v4.5.0","v4.5.0-beta1","v4.4.0","v3.1.0-beta1","v3.0.2","v3.0.1","v3.0.0-beta7","v3.0.0-beta6","v2.6.0","v2.6.0-beta1","v2.5.0","v2.0.2","v2.0.1","v2.0.0-beta3","v2.0.0-beta1","v1.9.1","v1.9.0","v1.9.0-rc1","v1.7.0-rc1","v1.6.1","v1.6.0","v1.5.4","v1.5.3","v1.5.2","v1.5.1","v1.5.0","v1.4.0","v1.3.0","v1.2.0","v1.1.0","v1.0.4","v1.0.3","v1.0.2","v1.0.1"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42127.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}