Vulnerability Report

CVE-2026-41271

Title: Unauthenticated SSRF in API Chain Components

SSRF

Proof Of Concept

No public PoC currently indexed for CVE-2026-41271.

CWE Category CWE-918
Published Date Apr 23, 2026
Modified Date Apr 24, 2026
Exploit Status Not Found
Score 8.3 CVSS v3.0
Exploit Probability (EPSS)
0.23%

Vulnerability Summary

CVE-2026-41271: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Server-Side Request Forgery (SSRF) vulnerability exists in FlowiseAI's POST/GET API Chain components that allows unauthenticated attackers to force the server to make arbitrary HTTP requests to internal and external systems. By injecting malicious prompt templates, attackers can bypass the intended API documentation constraints and redirect requests to sensitive internal services, potentially leading to internal network reconnaissance and data exfiltration. This vulnerability is fixed in 3.1.0.

Impacted Vendors

F
flowiseai 1

Reference Links

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6r77-hqx7-7vw8 https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6r77-hqx7-7vw8
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.3
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CVSS v3.0
Source Entity [email protected]
Severity HIGH
7.1
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-41271 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected Stack

No specific products linked.