High
Denial of service via unbounded request body size
Type: advisorySources: OSV
Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-33382
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 18:45 UTC · Revision 1
Source evidence
Denial of service via unbounded request body size
core-osv · Original sourcePublished 10 Jul 2026, 14:58 UTC
Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.
osv:CVE-2026-33382
Complete source record
{
"id": "357a00b97d6898f9f2ce75e9dcc554ec15ed87f4aa7cb93416ef226e5114cfad",
"url": "https://osv.dev/vulnerability/CVE-2026-33382",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Denial of service via unbounded request body size",
"summary": "Several Grafana API endpoints, some of them unauthenticated, do not limit the size of the request body before processing it. An attacker can send very large payloads that force excessive memory allocation, potentially exhausting memory and causing a denial of service.",
"evidence": "osv:CVE-2026-33382",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-33382",
"aliases": [
"BIT-grafana-2026-33382",
"CVE-2026-33382"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/grafana/grafana",
"type": "GIT",
"events": [
{
"introduced": "d2fdff9ee4d75c74bfd3a97c18a0b8e4d029f06e"
},
{
"fixed": "f70d3e480274a5dbd12006338c393f4b05d441ca"
},
{
"introduced": "92f1fba9b4b6700328e99e97328d6639df8ddc3d"
},
{
"fixed": "d27d2eba9c509d16f214d290436a6ad0bd9c6c01"
},
{
"introduced": "20051fb1fc604fc54aae76356da1c14612af41d0"
},
{
"fixed": "dd5dc51681ff0133ddb2e206c2ea318713aeca16"
},
{
"introduced": "d1729c53a7f44e2e58947eb44eb896c2fb1c30b3"
},
{
"fixed": "42cdc39124912a8506a0c613c319c345aa950b29"
},
{
"introduced": "e9de482b5110e6e7310a18274c53a0d7d0eee6af"
},
{
"fixed": "3fcdbc5a6e5c955bd42bd3715dd03cbad2b078c1"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "11.6.0"
},
{
"fixed": "11.6.15"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "12.2.0"
},
{
"fixed": "12.2.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "12.3.0"
},
{
"fixed": "12.3.7"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "12.4.0"
},
{
"fixed": "12.4.4"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:grafana:grafana:*:*:*:*:-:*:*:*",
"range": [
{
"introduced": "13.0.0"
},
{
"fixed": "13.0.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v11.6.14+security-01",
"v11.6.14",
"v11.6.13",
"v11.6.12",
"v11.6.11",
"v11.6.10",
"v11.6.9",
"v11.6.8",
"v11.6.7",
"v11.6.6",
"v11.6.5",
"v11.6.4",
"v11.6.2",
"v11.6.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33382.json"
}
}
],
"modified": "2026-10-28T02:30:38.316118410Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33382.json",
"https://grafana.com/security/security-advisories/cve-2026-33382",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33382"
],
"provider_metadata": {
"cwe_ids": [
"CWE-400"
],
"cna_assigner": "GRAFANA",
"unresolved_ranges": [
{
"extracted_events": [
{
"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"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33382.json"
}
},
"related_cves": [
{
"value": "CVE-2026-33382",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 505830,
"published_at": "2026-07-10T14:58:23.329+00:00"
}