CVE-2026-27880

Severity CVSS v4.0:

Pending analysis

Type:

CWE-787 Out-of-bounds Write

Publication date:

27/03/2026

Last modified:

31/03/2026

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

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

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-27880

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools