CVE-2026-27879 — Out-of-bounds Write in Grafana

CWE-787 — Out-of-bounds WriteCWE-400 — Uncontrolled Resource ConsumptionCWE-770 — Allocation of Resources Without Limits or Throttling6 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.0%
top 96.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Grafana
Timeline
PublishedMar 27

Description

A resample query can be used to trigger out-of-memory crashes in Grafana.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5grafana/grafana8.0.0 — 11.6.14+4
▶NVDgrafana/grafana11.6.14 — 12.0.0+4

🔴Vulnerability Details

3
GHSA
GHSA-4368-7mjc-5763: A resample query can be used to trigger out-of-memory crashes in Grafana↗2026-03-27
▶
OSV
CVE-2026-27879: A resample query can be used to trigger out-of-memory crashes in Grafana↗2026-03-27
▶
CVEList
Query resampling can cause unbounded memory allocations↗2026-03-27
▶

📋Vendor Advisories

1
Red Hat
Grafana: Grafana: Denial of Service via resample query↗2026-03-27
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🕵️Threat Intelligence

1
Wiz
CVE-2026-27879 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-27879 — Out-of-bounds Write in Grafana | cvebase