{"cve":"CVE-2026-41273","nvd":{"published":"2026-04-23T20:16:15.973","modified":"2026-10-26T21:10:00.170","status":"Modified","description":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, Flowise contains an authentication bypass vulnerability that allows an unauthenticated attacker to obtain OAuth 2.0 access tokens associated with a public chatflow. By accessing a public chatflow configuration endpoint, an attacker can retrieve internal workflow data, including OAuth credential identifiers, which can then be used to refresh and obtain valid OAuth 2.0 access tokens without authentication. This vulnerability is fixed in 3.1.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:H/SI:N/SA:N","score":7.7},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","score":8.2},"cwes":["CWE-306"],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6f7g-v4pp-r667","https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6f7g-v4pp-r667"],"products":["flowiseai:flowise"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-41273","score":0.00308,"percentile":0.23411,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-6f7g-v4pp-r667","url":"https://osv.dev/vulnerability/GHSA-6f7g-v4pp-r667","summary":"Flowise: Unauthenticated OAuth 2.0 Access Token Disclosure via Public Chatflow in Flowise","modified":"2026-05-05T16:11:44.295625Z","packages":[{"ecosystem":"npm","name":"flowise","purl":"pkg:npm/flowise","ranges":["<3.1.0"],"fixed":["3.1.0"]}]}],"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."]}