CVE-2026-33382: CWE-400 in Grafana Grafana OSS
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.
AI Analysis
Technical Summary
Several Grafana OSS API endpoints lack request body size limits before processing, enabling attackers to send oversized payloads that force excessive memory allocation. This can exhaust system memory and cause denial of service conditions. The vulnerability is tracked as CVE-2026-33382 and is classified under CWE-400 (Uncontrolled Resource Consumption). It affects multiple specific versions of Grafana OSS. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
An attacker can cause a denial of service by sending very large request payloads to vulnerable Grafana OSS API endpoints, leading to excessive memory consumption and potential service disruption. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider implementing external protections such as rate limiting, request size restrictions at the network or proxy level, or other resource controls to mitigate potential denial of service attacks targeting these API endpoints.
CVE-2026-33382: CWE-400 in Grafana Grafana OSS
Description
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.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/grafana/grafanaRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Several Grafana OSS API endpoints lack request body size limits before processing, enabling attackers to send oversized payloads that force excessive memory allocation. This can exhaust system memory and cause denial of service conditions. The vulnerability is tracked as CVE-2026-33382 and is classified under CWE-400 (Uncontrolled Resource Consumption). It affects multiple specific versions of Grafana OSS. No vendor advisory or patch information is currently available, and no known exploits are reported in the wild.
Potential Impact
An attacker can cause a denial of service by sending very large request payloads to vulnerable Grafana OSS API endpoints, leading to excessive memory consumption and potential service disruption. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider implementing external protections such as rate limiting, request size restrictions at the network or proxy level, or other resource controls to mitigate potential denial of service attacks targeting these API endpoints.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GRAFANA
- Date Reserved
- 2026-03-19T07:55:06.978Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a51144968715ace43c8e299
Added to database: 07/10/2026, 15:48:25 UTC
Last enriched: 07/10/2026, 16:02:40 UTC
Last updated: 07/10/2026, 16:33:24 UTC
Views: 7
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