Grafana 12.1.0 < 12.1.10 / 12.2.0 < 12.2.8 / 12.3.0 < 12.3.6 / 12.4.0 < 12.4.2 DoS (CVE-2026-27880)

high Nessus Plugin ID 304686

Synopsis

The remote host is affected by a denial of service vulnerability.

Description

The version of Grafana installed on the remote host is 12.1.x prior to 12.1.10, 12.2.x prior to 12.2.8, 12.3.x prior to 12.3.6, or 12.4.x prior to 12.4.2. It is, therefore, affected by a denial of service vulnerability:

- The OpenFeature feature toggle evaluation endpoint reads unbounded values into memory, which can cause out-of-memory crashes. (CVE-2026-27880)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update Grafana to 12.1.10, 12.2.8, 12.3.6, 12.4.2 or later.

Plugin Details

Severity: High

ID: 304686

File Name: grafana_CVE-2026-27880.nasl

Version: 1.2

Type: Remote

Family: Web Servers

Published: 4/2/2026

Updated: 4/3/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-27880

CVSS v3

Risk Factor: High

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:grafana:grafana

Patch Publication Date: 3/30/2026

Vulnerability Publication Date: 3/30/2026

Reference Information

CVE: CVE-2026-27880

IAVB: 2026-B-0079

Detections

Analytics