Medium severity · published Mar 27, 2026
CVE-2026-27879
Query resampling can cause unbounded memory allocations
6.5
CVSS
0.4%
EPSS
No
On KEV
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:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 33% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
Grafana · Grafana
8.0.0 before 11.6.14; 12.0.0 before 12.1.10; 12.2.0 before 12.2.8; 12.3.0 before 12.3.6; 12.4.0 before 12.4.2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27879
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27879
Vendor Advisory
https://grafana.com/security/security-advisories/cve-2026-27879
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