by Kastro
Paper/Archive/CVE-2026-126812

CVE-2026-126812

blueprintue blueprintue-self-hosted-edition — blueprintUE Self-Hosted Edition before 4.3.7 Empty MariaDB Root Password via Docker Compose

CVSS 9.8
critical.is priorityof 100
29
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0No EPSS score.000 × 200.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
blueprintue-self-hosted-edition1.0.0 – < 4.3.74.3.7CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

advisorygithub.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67patchgithub.com/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c2f22efbbabf9fb31ec479544405b469patchgithub.com/blueprintue/blueprintue-self-hosted-edition/pull/270refgithub.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.7writeupgithub.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/database.envwriteupgithub.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/docker-compose-smtp.yml#L14-L24writeupvulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.7-empty-mariadb-root-password-via-docker-compose