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Vulnerabilities

Vulnerability · CVE-2026-33378

Using the $__timeGroup macro, one can achieve an OOM by overloading the server.

Published May 13, 2026 · catalog updated Jun 17, 2026 · Using the $__timeGroup macro,

Check if you run it

No confirmed exploitation is on record for CVE-2026-33378. EPSS is 0.33%. Act only if a listed version of Using the $__timeGroup macro, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Using the $__timeGroup macro,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium6.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.33%
Remediation
Advisory link
Affected products
cpe grafana/grafana

Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe grafana/grafana11.6.14
  • cpe grafana/grafana12.2.8

How to fix CVE-2026-33378

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33378. EPSS is 0.33%. Act only if a listed version of Using the $__timeGroup macro, is installed.

Which versions are affected?

Compare what you have installed with 11.6.14, 12.2.8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-400: Uncontrolled Resource Consumption. EPSS 0.33%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2026 · NIST NVD

    Detected

    Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

Sources

  • CVE.orgVulnerability recordCVE-2026-33378

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33378

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33378

    Using the $__timeGroup macro, one can achieve an OOM by overloading the server. This requires a SQL datasource. If the server is set up to auto-restart, the impact is minimal or non-existent, as the attack can take upwards of half an hour to crash the server.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.