CVE-2026-107914

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.

• CWE-459

• https://backdropcms.org/security/backdrop-sa-core-2026-006
• https://github.com/backdrop/backdrop/commit/1ae67061d9d487bb6cb3b8611191354052f34749
• https://github.com/backdrop/backdrop/commit/347c8e558254633205f431ce5c12321a7ae9248e

Published

Oct 9, 2026

Last Modified

Oct 9, 2026

Status

Awaiting Analysis

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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