---
id: CVE-2026-14199
title: >-
  Only self-managed Grafana instances with Auth Proxy authentication and
  identity caching enabled (sync_ttl greater than zero) are affected
summary: >-
  Only self-managed Grafana instances with Auth Proxy authentication and
  identity caching enabled (sync_ttl greater than zero) are affected. The Auth
  Proxy cache key concatenated the username and forwarded identity attributes
  without a del…
severity: high
cvss: 7.1
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L'
cwe:
  - CWE-290
  - CWE-863
  - CWE-1023
  - CWE-639
vendor: grafana
product: grafana
affected:
  - grafana < 11.0.0
  - 'grafana >= 12.4.10, < 13.0.0'
  - 'grafana >= 13.0.8, < 13.1.0'
  - 'grafana >= 13.1.5, < 13.2.0'
patched:
  - grafana 13.2.0
published: '2026-09-02'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T18:23:02.127'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-14199'
references:
  - url: 'https://grafana.com/security/security-advisories/cve-2026-14199'
    label: security@grafana.com
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14199.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-14199'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2521850'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-14199'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-14199'
  - url: 'https://grafana.com/security/security-advisories/cve-2026-14199/'
  - url: 'https://access.redhat.com/errata/RHSA-2026:66008'
  - url: 'https://access.redhat.com/errata/RHSA-2026:68926'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
epss: 0.00313
epssPercentile: 0.21566
ingestedAt: '2026-09-15T18:41:59.123Z'
---

## Overview

Only self-managed Grafana instances with Auth Proxy authentication and identity caching enabled (sync_ttl greater than zero) are affected. The Auth Proxy cache key concatenated the username and forwarded identity attributes without a delimiter, so distinct identities could collide on one key. An authenticated user who shapes their own attributes to collide with a higher-privileged user's, while that user's cache entry is live, is authenticated as that user, up to Administrator (authentication bypass by spoofing).

## Affected

- `grafana < 11.0.0`
- `grafana >= 12.4.10, < 13.0.0`
- `grafana >= 13.0.8, < 13.1.0`
- `grafana >= 13.1.5, < 13.2.0`

## Remediation

Upgrade past the affected range:

- `grafana 13.2.0`

## Vendor advisories

- **RHSA-2026:66008** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:66008)
- **Red Hat VEX** · Important · affected: Multicluster Global Hub, Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Ceph Storage 6, Red Hat Ceph Storage 7, Red Hat Ceph Storage 8, Red Hat Ceph Storage 9, … · no fix planned: Multicluster Global Hub, Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Ceph Storage 6, Red Hat Ceph Storage 7, … · updated 2026-09-22 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-14199.json)
- **RHSA-2026:68926** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-09-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:68926)