What’s Vulnerable › Vulnerabilities
CVE-2026-27879: Query resampling can cause unbounded memory allocations
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-27 · updated 2026-06-17
- Weakness: CWE-787
Description
A resample query can be used to trigger out-of-memory crashes in Grafana.
Affected products
- Grafana: before 8.0.0; from 11.6.14 before 12.0.0; from 12.1.10 before 12.2.0; from 12.2.8 before 12.3.0; from 12.3.6 before 12.4.0 — fixed in 12.0.0, 12.2.0, 12.3.0, 12.4.0, 8.0.0
How to fix
Upgrade to a fixed version: Grafana 12.0.0, 12.2.0, 12.3.0, 12.4.0. Check the vendor advisory for mitigations.
References
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