{"cve":"CVE-2026-73407","nvd":{"published":"2026-08-12T20:17:55.763","modified":"2026-09-08T20:56:50.520","status":"Deferred","description":"Budibase is an open-source low-code platform. Prior to 3.40.1, RestIntegration._req in packages/server/src/integrations/rest.ts attached credentials from getAuthHeaders and defaultHeaders without requiring the final request destination to match the datasource origin. An unauthenticated caller of a PUBLIC POST /api/v2/queries/:queryId query could supply an absolute or parameterized path to an attacker-controlled host and receive the stored bearer, basic, or static-header credentials. This issue is fixed in version 3.40.1.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N","score":9.0},"cvss_v3":null,"cwes":["CWE-22"],"references":["https://github.com/Budibase/budibase/commit/8b1bca71501b11c68310351ef4f2c3028b2d5f08","https://github.com/Budibase/budibase/pull/19239","https://github.com/Budibase/budibase/releases/tag/3.40.1","https://github.com/Budibase/budibase/security/advisories/GHSA-mqhr-6j6h-74p5","https://github.com/Budibase/budibase/security/advisories/GHSA-mqhr-6j6h-74p5"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:48:17.459049833+00:00"},"epss":{"cve":"CVE-2026-73407","score":0.0054,"percentile":0.45454,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-mqhr-6j6h-74p5","url":"https://osv.dev/vulnerability/GHSA-mqhr-6j6h-74p5","summary":" Budibase: Unauthenticated REST Datasource Credential Theft via Cross-Origin Auth Leak ","modified":"2026-08-13T04:11:10.425225151Z","packages":[{"ecosystem":"npm","name":"@budibase/server","purl":"pkg:npm/%40budibase/server","ranges":["<=3.38.1"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}