---
id: CVE-2026-102811
title: >-
  Marmite through 0.4.2 contains missing authentication in the development
  server endpoints /__marmite__/content, /__marmite__/config, and
  /__marmite__/file/, allowing unauthenticated attackers to create, modify, and
  overwrite site content…
summary: >-
  Marmite through 0.4.2 contains missing authentication in the development
  server endpoints /__marmite__/content, /__marmite__/config, and
  /__marmite__/file/, allowing unauthenticated attackers to create, modify, and
  overwrite site content…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-306
vendor: rochacbruno
product: marmite
affected:
  - marmite <= 0.4.2
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T18:17:14.527'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102811'
references:
  - url: 'https://github.com/rochacbruno/marmite'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/content.rs#L1064-L1075
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/content.rs#L1300-L1322
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rochacbruno/marmite/blob/4b2ddbd7595233b2e1d0086e18490fec49705098/src/server.rs#L455-L475
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/rochacbruno/marmite/commit/303a0bf2fff4302f4164c0c39932fdffc6683ad4
    label: disclosure@vulncheck.com
  - url: 'https://github.com/rochacbruno/marmite/issues/554'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/marmite-through-0.4.2-unauthenticated-api-access-via-development-server
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-29T17:49:30.612425Z'
ingestedAt: '2026-09-29T17:41:02.256Z'
---

## Overview

Marmite through 0.4.2 contains missing authentication in the development server endpoints /__marmite__/content, /__marmite__/config, and /__marmite__/file/, allowing unauthenticated attackers to create, modify, and overwrite site content and configuration. Attackers can exploit unsanitized path parameters in handle_create_content and handle_clone_content to write files outside the project directory via directory traversal.

## Remediation

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