---
title: "getgrav/grav — CVE-2026-76839"
description: "An authentication bypass flaw affects the Composer package getgrav/grav. Affected versions: <= 2.0.15. Fixed from version 2.0.16. CVSS score 7.7."
canonical: https://inyourgeek.com/en/failles-de-securite/2026-09-17-cve-2026-76839
type: faille-de-securite
author: "Sébastien Soulier"
publisher: "InYourGeek"
language: en
datePublished: 2026-09-17
dateModified: 2026-09-17
---
# getgrav/grav — CVE-2026-76839

An authentication bypass flaw affects the Composer package getgrav/grav. Affected versions: <= 2.0.15. Fixed from version 2.0.16. CVSS score 7.7.

## What to do

Update getgrav/grav to 2.0.16 or later.

| Fact | Value |
| --- | --- |
| Package | getgrav/grav |
| Ecosystem | Composer (PHP) |
| Class | Authentication bypass |
| Affected versions | <= 2.0.15 |
| Fixed version | 2.0.16 |
| CVSS | 7.7 |
| CVE | CVE-2026-76839 |
| GHSA | GHSA-3jhr-mxmx-38cx |
| Published on | September 17, 2026 |
| Severity | High |

## Sources

- [GitHub Security Advisory — GHSA-3jhr-mxmx-38cx](https://github.com/advisories/GHSA-3jhr-mxmx-38cx) — GitHub Security Advisories
- [NVD — CVE-2026-76839](https://nvd.nist.gov/vuln/detail/CVE-2026-76839) — NVD

---

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Method and safeguards : https://inyourgeek.com/en/methode
Full register : https://inyourgeek.com/en/failles-de-securite