PT-2026-51508 · Flowise · Flowise

Cn-Panda · Published 2026-06-23 · Updated 2026-06-23 · CVE-2026-56275

NVD

CVSS v4.0

6.0

Medium

Base vector

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

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.

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-56275

Affected Products

Flowise

References · 3

• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9hrv-gvrv-6gf2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56275 · Security Note
• https://vulncheck.com/advisories/flowise-server-side-request-forgery-via-execute-flow-base-url · Note