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CVE-2026-27880

HIGH CVSS 3.1: 7.5 EPSS 0.02%
Updated Mar 31, 2026
Grafana
Parameter Value
CVSS 7.5 (HIGH)
Affected Versions 12.1.10 — 12.4.0
Fixed In 12.1.0
Type CWE-787 (Out-of-bounds Write)
Vendor Grafana
Public PoC No

The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 4

Configuration From (including) Up to (excluding)
Grafana Grafana
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
12.1.0
Grafana Grafana
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
12.1.10 12.2.0
Grafana Grafana
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
12.2.8 12.3.0
Grafana Grafana
cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:*
12.3.6 12.4.0