CVE-2026-126812 json
blueprintUE Self-Hosted Edition before 4.3.7 Empty MariaDB Root Password via Docker Compose
published 18h ago modified 13h ago also EUVD-2026-124027 , GHSA-9f6r-vjc7-jq67
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository blueprintue/blueprintue-self-hosted-edition. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no EPSS score yet
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- blueprintue blueprintue-self-hosted-edition 4.3.7
Is CVE-2026-126812 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
- blueprintue blueprintue-self-hosted-edition
Classification
- Weakness
-
- CWE-258 Empty Password in Configuration File
References
-
github.com
/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c2f22efbbabf9fb31ec479544405b469
patch
-
github.com
/blueprintue/blueprintue-self-hosted-edition/pull/270
issue-tracking, patch
-
github.com
/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67
vendor-advisory, advisory
-
github.com
/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.7
release-notes
-
github.com
/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/database.env
technical-description
-
github.com
/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/docker-compose-smtp.yml#L14-L24
technical-description
-
vulncheck.com
/advisories/blueprintue-self-hosted-edition-before-4.3.7-empty-mariadb-root-password-via-docker-compose
third-party-advisory
Sources
- CVE List CVE-2026-126812
- NVD CVE-2026-126812
- Maintainer advisory GHSA-9f6r-vjc7-jq67
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of blueprintue/blueprintue-self-hosted-edition published their own advisory on GitHub. Reviewed sources take precedence over it.