CVE-2026-41266: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in FlowiseAI Flowise
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, /api/v1/public-chatbotConfig/:id ep exposes sensitive data including API keys, HTTP authorization headers and internal configuration without any authentication. An attacker with knowledge just of a chatflow UUID can retrieve credentials stored in password type fields and HTTP headers, leading to credential theft and more. This vulnerability is fixed in 3.1.0.
AI Analysis
Technical Summary
CVE-2026-41266 is an information exposure vulnerability in FlowiseAI Flowise before version 3.1.0. The vulnerability occurs because the /api/v1/public-chatbotConfig/:id endpoint does not enforce authentication and discloses sensitive data including API keys, HTTP authorization headers, and internal configuration details. Attackers with knowledge of a chatflow UUID can retrieve credentials stored in password-type fields and HTTP headers, leading to unauthorized access to sensitive credentials. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information), CWE-522 (Insufficiently Protected Credentials), and CWE-862 (Missing Authorization). The vulnerability is resolved in Flowise version 3.1.0.
Potential Impact
Exploitation of this vulnerability allows an unauthenticated attacker to obtain sensitive credentials such as API keys and authorization headers by accessing a public API endpoint with only a chatflow UUID. This can lead to credential theft and potentially unauthorized access to systems or services relying on those credentials. The CVSS 4.0 base score is 7.7 (high severity), reflecting the network attack vector, no required privileges or user interaction, and the high confidentiality impact.
Mitigation Recommendations
Upgrade Flowise to version 3.1.0 or later, where this vulnerability is fixed. Prior to upgrading, restrict access to the /api/v1/public-chatbotConfig/:id endpoint to trusted users only, if possible. Since this is not a cloud service, remediation depends on applying the vendor's fixed version. Patch status is confirmed fixed in version 3.1.0.
CVE-2026-41266: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in FlowiseAI Flowise
Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, /api/v1/public-chatbotConfig/:id ep exposes sensitive data including API keys, HTTP authorization headers and internal configuration without any authentication. An attacker with knowledge just of a chatflow UUID can retrieve credentials stored in password type fields and HTTP headers, leading to credential theft and more. This vulnerability is fixed in 3.1.0.
CVSS v4.0
Score 7.7high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41266 is an information exposure vulnerability in FlowiseAI Flowise before version 3.1.0. The vulnerability occurs because the /api/v1/public-chatbotConfig/:id endpoint does not enforce authentication and discloses sensitive data including API keys, HTTP authorization headers, and internal configuration details. Attackers with knowledge of a chatflow UUID can retrieve credentials stored in password-type fields and HTTP headers, leading to unauthorized access to sensitive credentials. The vulnerability is classified under CWE-200 (Exposure of Sensitive Information), CWE-522 (Insufficiently Protected Credentials), and CWE-862 (Missing Authorization). The vulnerability is resolved in Flowise version 3.1.0.
Potential Impact
Exploitation of this vulnerability allows an unauthenticated attacker to obtain sensitive credentials such as API keys and authorization headers by accessing a public API endpoint with only a chatflow UUID. This can lead to credential theft and potentially unauthorized access to systems or services relying on those credentials. The CVSS 4.0 base score is 7.7 (high severity), reflecting the network attack vector, no required privileges or user interaction, and the high confidentiality impact.
Mitigation Recommendations
Upgrade Flowise to version 3.1.0 or later, where this vulnerability is fixed. Prior to upgrading, restrict access to the /api/v1/public-chatbotConfig/:id endpoint to trusted users only, if possible. Since this is not a cloud service, remediation depends on applying the vendor's fixed version. Patch status is confirmed fixed in version 3.1.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-18T14:01:46.801Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69ea782987115cfb6850f824
Added to database: 4/23/2026, 7:51:05 PM
Last enriched: 5/1/2026, 8:40:28 PM
Last updated: 6/8/2026, 3:31:38 AM
Views: 66
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