Server-Side Request Forgery in Flowise Product by Vendor
CVE-2026-127214

6.3MEDIUM

Key Information:

Vendor

Flowiseai

Status
Flowise
Vendor
CVE Published:
13 November 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-127214?

Flowise version 3.1.4 is susceptible to a server-side request forgery vulnerability. The flaw allows authenticated users with specific permissions to bypass the Custom Function sandbox’s SSRF protections. By manipulating module subpaths in an allowlisted package (like axios or node-fetch), attackers can evade security checks and execute unauthorized GET and POST requests. This could potentially expose internal network details, facilitate credential disclosure, and alter states of internal services by targeting loopback and cloud metadata addresses.

Affected Version(s)

Flowise 0 <= 3.1.4

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-127214 - Proof of Concept

References

https://github.com/soovwv/cve/blob/main/research/flowise-...
technical-descriptionexploit
https://www.vulncheck.com/advisories/flowise-ssrf-bypass-...
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

soovwv
.