{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21723","assignerOrgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","state":"PUBLISHED","assignerShortName":"GRAFANA","dateReserved":"2026-01-05T09:26:06.214Z","datePublished":"2026-07-23T01:48:16.245Z","dateUpdated":"2026-08-19T19:03:16.560Z"},"containers":{"cna":{"providerMetadata":{"orgId":"57da9224-a3e2-4646-9d0e-c4dc2e05e7da","shortName":"GRAFANA","dateUpdated":"2026-08-19T19:03:16.560Z"},"datePublic":"2026-07-22T01:42:00.000Z","title":"CVE-2026-21723 Record","descriptions":[{"lang":"en","value":"The alertmanager templates test endpoint (/api/alertmanager/grafana/config/api/v1/templates/test) can execute templates with no memory limits. Mass-executing templates in a short period causes OOM and crashes the Grafana service. The endpoint requires very low privileges and is exploitable with anonymous access enabled."}],"affected":[{"vendor":"Grafana","product":"Grafana OSS","defaultStatus":"unaffected","versions":[{"version":"8.0.0","status":"affected","versionType":"semver","lessThanOrEqual":"11.0.0"},{"version":"11.0.0","status":"affected","versionType":"semver","lessThanOrEqual":"11.6.10"},{"version":"12.0.0","status":"affected","versionType":"semver","lessThanOrEqual":"12.0.9"},{"version":"12.1.0","status":"affected","versionType":"semver","lessThanOrEqual":"12.1.6"},{"version":"12.2.0","status":"affected","versionType":"semver","lessThanOrEqual":"12.2.4"},{"version":"12.3.0","status":"affected","versionType":"semver","lessThanOrEqual":"12.3.2"}]}],"references":[{"url":"https://grafana.com/security/security-advisories/cve-2026-21723","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"version":"3.1","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"}}],"credits":[{"lang":"en","value":"nacl (Researcher)","type":"finder"}],"source":{"discovery":"BUG_BOUNTY"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-400","lang":"en","description":"CWE-400 Uncontrolled Resource Consumption"}]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-23T14:15:50.650728Z","id":"CVE-2026-21723","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-23T14:16:10.097Z"}}]}}