Vulnerability · Published Jul 10, 2026 · Assigned by GRAFANA
CVE-2026-33382Denial of service via unbounded request body size
High 7.5
In plain English
A high-severity uncontrolled resource consumption in Grafana OSS from Grafana. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 66.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | grafana | 10.2.6-28.el10_2.4 | ALSA-2026:54178 |
| AlmaLinux:10 | grafana-selinux | 10.2.6-28.el10_2.4 | ALSA-2026:54178 |
| Alpine:v3.24 | grafana | 12.4.4-r0 | ALPINE-CVE-2026-33382 |
| Rocky Linux:10 | grafana | 0:10.2.6-28.el10_2.4 | RLSA-2026:54178 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Grafana | Grafana OSS | 11.6.0 – through 11.6.1412.2.0 – through 12.2.812.3.0 – through 12.3.612.4.0 – through 12.4.313.0.0 – through 13.0.1 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://grafana.com/security/security-advisories/cve-2026-33382 vendor-advisory