What is CVE-2026-107914?

CVE-2026-107914 is a high-severity vulnerability in Backdropcms Backdrop, classified under Incomplete Cleanup. CVSS score: 7.8/10. Published 2026-10-09.

How severe is CVE-2026-107914?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Backdropcms Backdrop

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.

Published 2026-10-09 · last modified 2026-10-09.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Backdropcms Backdrop

Weakness classification (CWE)

CWE-459 — Incomplete Cleanup

References

Frequently asked questions

What is CVE-2026-107914?: CVE-2026-107914 is a high-severity vulnerability in Backdropcms Backdrop, classified under Incomplete Cleanup. CVSS score: 7.8/10. Published 2026-10-09.
How severe is CVE-2026-107914?: High severity. CVSS v3 base score is 7.8 out of 10.