Description
A resample query can be used to trigger out-of-memory crashes in Grafana.
Published: 2026-03-27
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Out-of-Memory Denial of Service
Action: Apply Patch
AI Analysis

Impact

The vulnerability allows an attacker to craft a resample query that triggers unbounded memory allocations in Grafana, causing out-of-memory crashes that deny service. The weakness maps to CWE-400 (Uncontrolled Resource Consumption), CWE-770 (Out-of-Bounds Allocation), and CWE-787 (Out-of-Bounds Write).

Affected Systems

The flaw resides in Grafana and affects any installed instance that processes resample queries. Version specifics are not provided, so all Grafana releases that support resample queries may be impacted until the fix is applied.

Risk and Exploitability

With a CVSS base score of 6.5 the flaw is of medium severity. An EPSS score of less than 1 percent and absence from the CISA KEV catalog suggest low current exploitation likelihood. The likely attack vector is inferred to be application-level via crafted query input, meaning an attacker who can submit resample queries could trigger the crash.

Generated by OpenCVE AI on March 31, 2026 at 20:24 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade Grafana to the latest release that includes the patch for this vulnerability.
  • If an immediate upgrade is not possible, restrict or sanitize resample query size or disable resample functionality until the patch is applied.
  • Monitor Grafana logs for out-of-memory crashes and review system resources for abnormal usage.

Generated by OpenCVE AI on March 31, 2026 at 20:24 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 31 Mar 2026 19:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787
CPEs cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*

Tue, 31 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 30 Mar 2026 07:15:00 +0000

Type Values Removed Values Added
First Time appeared Grafana
Grafana grafana
Vendors & Products Grafana
Grafana grafana

Sun, 29 Mar 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Sat, 28 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
References
Metrics threat_severity

None

threat_severity

Moderate


Fri, 27 Mar 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400

Fri, 27 Mar 2026 14:45:00 +0000

Type Values Removed Values Added
Description A resample query can be used to trigger out-of-memory crashes in Grafana.
Title Query resampling can cause unbounded memory allocations
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GRAFANA

Published:

Updated: 2026-04-15T19:25:07.791Z

Reserved: 2026-02-24T14:30:17.727Z

Link: CVE-2026-27879

cve-icon Vulnrichment

Updated: 2026-03-31T15:02:52.661Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-27T15:16:51.187

Modified: 2026-03-31T18:56:31.810

Link: CVE-2026-27879

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-03-27T14:28:56Z

Links: CVE-2026-27879 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-02T07:55:36Z

Weaknesses