CVE-2026-41273 | FlowiseAI Flowise up to 3.0.x missing authentication (GHSA-6f7g-v4pp-r667 / EUVD-2026-25290)

VDB-359210 · CVE-2026-41273 · GHSA-6F7G-V4PP-R667 FLOWISEAI FLOWISE UP TO 3.0.X MISSING AUTHENTICATION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.0 $0-$5k 2.74+ Summaryinfo A vulnerability described as critical has been identified in FlowiseAI Flowise up to 3.0.x. Impacted is an unknown function. Such manipulation leads to missing authentication. This vulnerability is referenced as CVE-2026-41273. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended. Detailsinfo A vulnerability, which was classified as critical, has been found in FlowiseAI Flowise up to 3.0.x. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a missing authentication vulnerability. Using CWE to declare the problem leads to CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. Impacted is confidentiality, integrity, and availability. CVE summarizes: 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. The advisory is available at github.com. This vulnerability is handled as CVE-2026-41273 since 04/18/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. Upgrading to version 3.1.0 eliminates this vulnerability. The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-25290). Productinfo Vendor FlowiseAI Name Flowise Version 3.0 Website Product: https://github.com/FlowiseAI/Flowise/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 7.3 VulDB Meta Temp Score: 7.0 VulDB Base Score: 7.3 VulDB Temp Score: 7.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Missing authentication CWE: CWE-306 / CWE-287 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Flowise 3.1.0 Timelineinfo 04/18/2026 CVE reserved 04/23/2026 +5 days Advisory disclosed 04/23/2026 +0 days VulDB entry created 04/24/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-6f7g-v4pp-r667 Status: Confirmed CVE: CVE-2026-41273 (🔒) GCVE (CVE): GCVE-0-2026-41273 GCVE (VulDB): GCVE-100-359210 EUVD: 🔒 Entryinfo Created: 04/23/2026 23:18 Updated: 04/24/2026 00:04 Changes: 04/23/2026 23:18 (67), 04/24/2026 00:04 (1) Complete: 🔍 Cache ID: 99:25E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸