CVE-2026-56275
MEDIUM EPSS 8.1%
Published Jun 23, 20261w ago · Modified Jun 23, 20261w ago
6.0 CVSS 4.0
Published Jun 23, 2026 1w ago
Last Modified Jun 23, 2026 1w ago
Description
Flowise before 3.1.0 contains a server-side request forgery vulnerability in the Execute Flow node that allows attackers to bypass security validation by providing intranet addresses through the base URL field. Attackers can initiate HTTP requests to internal network addresses, access cloud metadata, and enumerate internal services by exploiting the missing secureFetch verification in httpSecurity.ts.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
8.1% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-918 Server-Side Request Forgery (SSRF) Validation
References 2
- github.com https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9hrv-gvrv-6gf2
- vulncheck.com https://www.vulncheck.com/advisories/flowise-server-side-request-forgery-via-execute-flow-base-url
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.