---
id: CVE-2026-75837
title: >-
  Grav before 2.0.14 fails to guard the access field in the core group blueprint
  with the required security@: admin.super restriction
summary: >-
  Grav before 2.0.14 fails to guard the access field in the core group blueprint
  with the required security@: admin.super restriction. A delegated admin.users
  operator can save a group with access[admin][super]=true to escalate to
  super-ad…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-269
  - CWE-862
published: '2026-08-18'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T20:32:39.347'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75837'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field
    label: disclosure@vulncheck.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-75837'
  - url: 'https://github.com/advisories/GHSA-xhfv-7758-r9hx'
tags:
  - nvd
  - ghsa
  - composer
epss: 0.00494
epssPercentile: 0.3987
ingestedAt: '2026-09-08T21:11:12.280Z'
aliases:
  - GHSA-xhfv-7758-r9hx
ecosystem: composer
vendor: getgrav
product: getgrav/grav
affected:
  - getgrav/grav < 2.0.14
patched:
  - getgrav/grav 2.0.14
---

## Overview

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-75837)

Affected packages:

- `getgrav/grav < 2.0.14`

Patched in:

- `getgrav/grav 2.0.14`

Source: https://github.com/advisories/GHSA-xhfv-7758-r9hx