CVE-2026-33375: Grafana OSS · Uncontrolled Resource Consumption
Affects Grafana OSSSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium · fixed in 12.4.2 : update Grafana OSS when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 12.4.2, 12.3.6+security-01, 12.2.8+security-01 +2
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 26 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GrafanaGrafana OSS | Affected
| Fixed in
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| GrafanaGrafana OSS | Affected
| Fixed in
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| GrafanaGrafana OSS | Affected
| Fixed in
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| GrafanaGrafana OSS | Affected
| Fixed in
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| GrafanaGrafana OSS | Affected
| Fixed in
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AI-suggested
If you cannot patch yet, consider restricting Viewer role permissions or limiting access to the MSSQL data source plugin to trusted users only.
Description
The Grafana MSSQL data source plugin contains a logic flaw that allows a low-privileged user (Viewer) to bypass API restrictions and trigger a catastrophic Out-Of-Memory (OOM) memory exhaustion, crashing the host container.