Denial of service via unbounded request body size

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-33382
StatePUBLISHED
AssignerGRAFANA
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-10 16:16:29 UTC
Updated2026-07-13 20:51:35 UTC
DescriptionSeveral 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.003800000 probability, percentile 0.301090000 (date 2026-07-13)

Problem Types: CWE-400 | CWE-400 CWE-400

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Grafana Grafana All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Grafana Grafana OSS affected 11.6.0 11.6.14 semver Not specified
CNA Grafana Grafana OSS affected 12.2.0 12.2.8 semver Not specified
CNA Grafana Grafana OSS affected 12.3.0 12.3.6 semver Not specified
CNA Grafana Grafana OSS affected 12.4.0 12.4.3 semver Not specified
CNA Grafana Grafana OSS affected 13.0.0 13.0.1 semver Not specified

References

ReferenceSourceLinkTags
grafana.com/security/security-advisories/cve-2026-33382 [email protected] grafana.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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