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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-91937— Flowise before 3.1.4 NoSQL Injection via sessionId

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.

FlowiseAI Flowise是FlowiseAI公司开源的一款可视化编排语言模型应用流程的工具。 FlowiseAI Flowise 3.1.4之前版本存在输入验证错误漏洞，该漏洞源于未对overrideConfig.sessionId参数进行清理便用于MongoDBMemory节点中的MongoDB查询，可能导致未经验证的攻击者通过预测API提交MongoDB操作符对象，读取共享集合中其他用户的聊天历史记录。

CVSS 7.5 · High EPSS 0.47% · P41

Possible ATT&CK Techniques 1 AI

T1079.001

Affected Version Matrix 2

VendorProduct Version RangeStatus
FlowiseAI Flowise < 3.1.4 affected
3.1.4 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-91937

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 NoSQL Injection via sessionId
Source: CVE Program / CVE List V5
Vulnerability Description
Flowise before 3.1.4 fails to sanitize the overrideConfig.sessionId parameter before using it in MongoDB queries within the MongoDBMemory node. Unauthenticated attackers can submit MongoDB operator objects through the prediction API to read chat history records belonging to other users from the shared collection.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
数据查询逻辑中特殊元素的不当中和
Source: CVE Program / CVE List V5
Vulnerability Title
FlowiseAI Flowise 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FlowiseAI Flowise是FlowiseAI公司开源的一款可视化编排语言模型应用流程的工具。 FlowiseAI Flowise 3.1.4之前版本存在输入验证错误漏洞，该漏洞源于未对overrideConfig.sessionId参数进行清理便用于MongoDBMemory节点中的MongoDB查询，可能导致未经验证的攻击者通过预测API提交MongoDB操作符对象，读取共享集合中其他用户的聊天历史记录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

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

II. Public POCs for CVE-2026-91937

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-91937

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-91937 (2)

Same Patch Batch · FlowiseAI · 2026-09-15 · 10 CVEs total

CVE-2026-91934 8.8 HIGH Flowise before 3.1.4 Remote Code Execution via SQL Database Chain
CVE-2026-91931 8.5 HIGH Flowise before 3.1.4 Remote Code Execution via Custom MCP npx
CVE-2026-91932 8.5 HIGH Flowise before 3.1.4 Remote Code Execution via cwd Parameter
CVE-2026-91935 8.3 HIGH Flowise before 3.1.4 SSRF and API Key Exfiltration via Chat Model Nodes
CVE-2026-91930 7.5 HIGH Flowise before 3.1.4 Cross-Tenant Organization Admin Takeover
CVE-2026-91933 7.1 HIGH Flowise before 3.1.4 Authorization Bypass via openai-realtime
CVE-2026-91929 7.1 HIGH Flowise before 3.1.4 Cross-Tenant Authorization Bypass
CVE-2026-91938 7.1 HIGH Flowise before 3.1.4 Server-Side Request Forgery via document loaders
CVE-2026-91936 6.8 MEDIUM Flowise before 3.1.4 Script Injection via Docker Workflows

IV. Related Vulnerabilities

Same product: Flowise
Same vendor: FlowiseAI
Same weakness: CWE-943