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vuln-cve/data/2026/21xxx/CVE-2026-21723.json
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{
"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": "2026-08-27T17:22:29.672Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "57da9224-a3e2-4646-9d0e-c4dc2e05e7da",
"shortName": "GRAFANA",
"dateUpdated": "2026-08-27T17:22:29.672Z"
},
"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"
}
}
]
}
}