CVE-2026-126812: blueprintUE Self-Hosted Edition before 4.3.7 Empty MariaDB Root Password via Docker Compose

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of 13 Nov 2026. If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?

0.6%

EPSS score, percentile 49.4 of all scored records. A probability estimated by FIRST, not a report of exploitation.

CISA's SSVC assessment in the CVE record lists exploitation as poc.

How severe?

9.3 Critical

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (4)

Which versions are affected?

Affected

• from 1.0.0 to before 4.3.7

Versions by product

Source: CISA KEV 2026.11.13, as of 13 Nov 2026; FIRST EPSS, as of 13 Nov 2026; CVE List, as of 14 Nov 2026. About the data.

Description

blueprintUE Self-Hosted Edition before 4.3.7 Empty MariaDB Root Password via Docker Compose

blueprintUE Self-Hosted Edition before 4.3.7 contains an insecure default configuration in its Docker Compose examples that sets MYSQL_ALLOW_EMPTY_PASSWORD=yes in database.env and publishes MariaDB on port 3306. Unauthenticated attackers reaching the Docker host on port 3306 can log in as root without a password to read, modify, or delete user accounts, blueprints, and all databases.

Source: CVE List, as of 14 Nov 2026. About the data.

What to do

Advisories and patches

• github.com (Patch)
• github.com (Issue tracking, Patch)
• GitHub Security Advisory (GHSA-9f6r-vjc7-jq67) (Vendor advisory)
• blueprintue-self-hosted-edition v4.3.7 Release Notes (Release notes)

This summary is based on the CVE record as of 14 Nov 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 14 Nov 2026. About the data.

Timeline