CVE-2026-126812: blueprintue-self-hosted-edition · Empty Password in Configuration File
Affects blueprintue-self-hosted-editionSource CVE Database V5
Not known to be exploited · CVSS 9.3 Critical : upgrade to 4.3.7 as a priority.
Data as of 11 Nov 2026, 21:21 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 9.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 9.8 |
- Patch
- Available – fixed in 4.3.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.
What to do
Upgrade blueprintue-self-hosted-edition to 4.3.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| blueprintueblueprintue-self-hosted-edition | Affected
| Fixed in
|
GitHubblueprintue-self-hosted-editionpkg:github/blueprintue-self-hosted-editionOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade blueprintUE Self-Hosted Edition to version 4.3.7 or later, where the insecure default configuration is corrected. Until upgrading, do not use the default Docker Compose examples as-is; specifically, ensure that MYSQL_ALLOW_EMPTY_PASSWORD is not set to yes and that the database port is not exposed to untrusted networks.
Description
blueprintUE Self-Hosted Edition versions prior to 4.3.7 have an insecure default Docker Compose configuration that enables an empty root password for the MariaDB database. This allows unauthenticated attackers who can access the Docker host on port 3306 to log in as root without a password and fully control the database contents, including user accounts and blueprints.
References
- github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c2f22efbbabf9fb31ec479544405b469 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/pull/270 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.7 (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/database.env (opens in a new tab)
- github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/docker-compose-smtp.yml (opens in a new tab)
- vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.7-empty-mariadb-root-password-via-docker-compose (opens in a new tab)