{"id":"CVE-2026-73409","title":"Budibase is an open-source low-code platform","summary":"Budibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could su…","severity":"none","cwe":["CWE-203"],"published":"2026-08-12","updated":"2026-09-08","sourceUpdated":"2026-09-08T20:56:50.520","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73409","references":[{"url":"https://github.com/Budibase/budibase/commit/e58aa31e18272f6a1a8aeb525b7eef0b01b1dd43","label":"security-advisories@github.com"},{"url":"https://github.com/Budibase/budibase/pull/19244","label":"security-advisories@github.com"},{"url":"https://github.com/Budibase/budibase/releases/tag/3.40.1","label":"security-advisories@github.com"},{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-ppr4-5f46-j9c6","label":"security-advisories@github.com"},{"url":"https://github.com/Budibase/budibase/security/advisories/GHSA-ppr4-5f46-j9c6","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00243,"epssPercentile":0.15733,"ingestedAt":"2026-08-15T21:29:27.351Z","slug":"CVE-2026-73409","body":"## Overview\n\nBudibase is an open-source low-code platform. Prior to 3.40.1, packages/server/src/integrations/mongodb.ts passed builder-controlled tlsCertificateKeyFile and tlsCAFile values directly to MongoClient on Budibase Cloud. A builder could submit absolute server paths through /api/datasources/verify and distinguish readable existing files from missing files by comparing the driver error, exposing a filesystem existence and readability oracle on the shared server. This issue is fixed in version 3.40.1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}