---
id: CVE-2026-107914
title: >-
  Backdrop CMS 1.34 before 1.34.5 and 1.35 before 1.35.1 doesn't sufficiently
  protect configuration exports when delivering a compressed archive
summary: >-
  Backdrop CMS 1.34 before 1.34.5 and 1.35 before 1.35.1 doesn't sufficiently
  protect configuration exports when delivering a compressed archive. This
  vulnerability is mitigated by the fact that an export must have been
  previously requeste…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'
cwe:
  - CWE-459
  - CWE-497
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T07:17:18.240'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107914'
references:
  - url: 'https://backdropcms.org/security/backdrop-sa-core-2026-006'
    label: cve@mitre.org
  - url: >-
      https://github.com/backdrop/backdrop/commit/1ae67061d9d487bb6cb3b8611191354052f34749
    label: cve@mitre.org
  - url: >-
      https://github.com/backdrop/backdrop/commit/347c8e558254633205f431ce5c12321a7ae9248e
    label: cve@mitre.org
tags:
  - nvd
ingestedAt: '2026-10-09T06:27:05.591Z'
---

## Overview

Backdrop CMS 1.34 before 1.34.5 and 1.35 before 1.35.1 doesn't sufficiently protect configuration exports when delivering a compressed archive. This vulnerability is mitigated by the fact that an export must have been previously requested by someone with the "Synchronize, import, and export configuration" permission. NOTE: CVE-2026-107914 refers to the vulnerability in which config.admin.inc does not ensure that a file_unmanaged_delete operation occurs. Therefore, many archives could persist: config.tar.gz, config_0.tar.gz, config_1.tar.gz, etc. There is a separate config.module issue that could allow remote access by an anonymous user, but only for the one filename config.tar.gz.

## Remediation

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