CVE-2026-107914

high

Description

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.

References

https://github.com/backdrop/backdrop/commit/347c8e558254633205f431ce5c12321a7ae9248e

https://github.com/backdrop/backdrop/commit/1ae67061d9d487bb6cb3b8611191354052f34749

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-95489

https://backdropcms.org/security/backdrop-sa-core-2026-006

Details

Source: Mitre, NVD

Published: 2026-10-09

Updated: 2026-10-14

Risk Information

CVSS v2

Base Score: 5.6

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.0012