Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-90534— Flowise before 3.1.4 Cross-Workspace Credential IDOR via node-load-method

Quick assessment

Affected
FlowiseAI Flowise
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Flowise 是一个用于构建大语言模型（LLM）应用的低代码平台。在 3.1.3 及更早的版本中， 端点在挂载时未进行任何路由级别的权限检查，并且会调用组件的 loadMethods，其中 、 、 以及 （凭证）值均由攻击者控制。所选凭证通过 使用原始的 进行解析并解密，但在该路径中，未像其他凭证读取路径那样将 与调用者当前或共享的工作区进行校验（即缺乏工作区范围的约束）。 因此，来自某一工作区的低权限已认证用户（或工作区 API 密钥）可以提供一个属于另一工作区的凭证 ID，从而使 Flowise 充当“困惑的

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-90534

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Flowise before 3.1.4 Cross-Workspace Credential IDOR via node-load-method
Source: CVE Program / CVE List V5
Vulnerability Description
Flowise is a low-code platform for building LLM applications. In versions up to and including 3.1.3, the POST /api/v1/node-load-method/:name endpoint is mounted without any route-level permission check and invokes component loadMethods with an attacker-controlled nodeName, loadMethod, inputs, and credential value. The selected credential is resolved by raw Credential.id via getCredentialData() and decrypted without verifying Credential.workspaceId against the caller's active or shared workspace, unlike other credential read paths which are workspace-scoped. As a result, an authenticated low-privilege user (or workspace API key) in one workspace can supply a credential ID owned by another workspace and cause Flowise to act as a confused deputy, performing third-party provider calls with the victim workspace's credential and returning provider metadata to the attacker. Statically identified affected load methods include Google Drive listFiles, Google Sheets listSpreadsheets, and AWS DynamoDB KV Storage listTables. The raw credential secret itself is not returned to the attacker. This issue is fixed in version 3.1.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
FlowiseAI Flowise 0 ~ 3.1.4 -

II. Public POCs for CVE-2026-90534

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-90534

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-90534 (2)

Same Patch Batch · FlowiseAI · 2026-09-12 · 3 CVEs total

CVE-2026-90535 6.3 MEDIUM Flowise before 3.1.4 Denial of Service via text-to-speech/abort
CVE-2026-90533 6.0 MEDIUM Flowise before 3.1.4 Broken Access Control via organizationuser

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-639

V. Comments for CVE-2026-90534

No comments yet

Leave a comment