{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"blueprintue/blueprintue-self-hosted-edition","product":"blueprintue-self-hosted-edition","source":"CNA: VulnCheck","vendor":"blueprintue","versions":[{"lessThan":"4.3.7","status":"affected","version":"1.0.0","versionType":"semver"}]}],"cveId":"CVE-2026-126812","cwes":["CWE-258"],"description":"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.","epss":{"date":"2026-11-12","percentile":0.49383,"score":0.00604},"exploits":[{"kind":"exploit","source":"ADP: CISA-ADP","url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67"}],"kev":null,"metrics":[{"score":9.3,"severity":"critical","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":9.8,"severity":"critical","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},{"score":9.3,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"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","version":"4.0"},{"score":9.8,"severity":"critical","source":"NVD: disclosure@vulncheck.com","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1794528302077,"publishedAt":1794430392974,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c2f22efbbabf9fb31ec479544405b469"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/270"},{"source":"CNA: VulnCheck","tags":["release-notes"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.7"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/database.env"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/docker-compose-smtp.yml#L14-L24"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.7-empty-mariadb-root-password-via-docker-compose"},{"source":"ADP: CISA-ADP","tags":["exploit"],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/database.env"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/blob/v4.3.6/docker-examples/docker-compose-smtp.yml#L14-L24"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c2f22efbbabf9fb31ec479544405b469"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/270"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/releases/tag/v4.3.7"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/security/advisories/GHSA-9f6r-vjc7-jq67"},{"source":"disclosure@vulncheck.com","tags":[],"url":"https://www.vulncheck.com/advisories/blueprintue-self-hosted-edition-before-4.3.7-empty-mariadb-root-password-via-docker-compose"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/commit/e6a6e1d4c2f22efbbabf9fb31ec479544405b469"},{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/blueprintue/blueprintue-self-hosted-edition/pull/270"}],"revision":"6f49ee498d93c261c6d18d3adafa3de28498b9b1bd94a29bb57cc0e1ae50cbe5","sources":[{"modifiedAt":1794528302077,"name":"CNA: VulnCheck","retrievedAt":1794532147637,"url":"https://www.cve.org/CVERecord?id=CVE-2026-126812"},{"modifiedAt":1794519366743,"name":"NVD","retrievedAt":1794529415807,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-126812"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794532161021,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-126812"}],"ssvc":{"assessedAt":1794528267896,"automatable":"yes","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"blueprintUE Self-Hosted Edition before 4.3.7 Empty MariaDB Root Password via Docker Compose","updatedAt":1794532161021}