{"schema_version":"1.9.0","id":"BIT-grafana-2026-8609","published":"2026-07-14T08:45:33.798Z","modified":"2026-09-08T08:47:52.234031497Z","aliases":["CVE-2026-8609"],"summary":"Pre-authentication denial of service via the OAuth login route","details":"An unauthenticated attacker can repeatedly call Grafana's OAuth login route with unique values, causing unbounded memory growth that can eventually exhaust memory and crash the Grafana instance (denial of service).","affected":[{"package":{"name":"grafana","ecosystem":"Bitnami","purl":"pkg:bitnami/grafana"},"ranges":[{"type":"SEMVER","events":[{"introduced":"11.6.0"},{"fixed":"11.6.15"},{"introduced":"12.2.0"},{"fixed":"12.2.9"},{"introduced":"12.3.0"},{"fixed":"12.3.7"},{"introduced":"12.4.0"},{"fixed":"12.4.4"},{"introduced":"13.0.0"},{"fixed":"13.0.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/grafana/BIT-grafana-2026-8609.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"references":[{"type":"ADVISORY","url":"https://grafana.com/security/security-advisories/cve-2026-8609"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8609"}],"database_specific":{"cpes":["cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*"],"severity":"High"}}