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Flowise CVE-2024-8182

HIGH
Uncontrolled Resource Consumption (CWE-400)
2024-08-27 vulnreport@tenable.com
7.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could cause denial of service by exhausting system resources by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.
No patch listed yet 13.9% exploitation probability (EPSS)

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AnalysisAI

An Unauthenticated Denial of Service (DoS) vulnerability exists in Flowise version 1.8.2 leading to a complete crash of the instance running a vulnerable version due to improper handling of user. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement rate limiting, set resource quotas, validate input sizes, use timeouts.

Affected Packages

npm flowise no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in npm

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Uncontrolled Resource Consumption (CWE-400), which allows attackers to cause denial of service by exhausting system resources. An Unauthenticated Denial of Service (DoS) vulnerability exists in Flowise version 1.8.2 leading to a complete crash of the instance running a vulnerable version due to improper handling of user supplied input to the “/api/v1/get-upload-file” api endpoint. Affected products include: Flowiseai Flowise. Version information: version 1.8.2.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

An Unauthenticated Denial of Service (DoS) vulnerability exists in Flowise version 1.8.2 leading to a complete crash of the instance running a vulnerable version due to improper handling of user supplied input to the “/api/v1/get-upload-file” api endpoint.

Threat Intelligence Overview

EPSS Score
13.9%
Top 4% exploitable
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 13.9%
Patch available No
Active threat No
Deciding rule
HIGH severity + EPSS > 10%
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: +14
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:flowiseai:flowise:1.8.2:*:*:*:*:*:*:*
CVE-2025-59528 CRITICAL POC
10.0 Sep 22

Flowise version 3.0.5 contains a remote code execution vulnerability in the CustomMCP node. The mcpServerConfig paramete

CVE-2025-8943 CRITICAL POC
9.8 Aug 14

Flowise versions before 3.0.1 allow unauthenticated access to the Custom MCPs feature, which is designed to execute OS c

CVE-2025-26319 CRITICAL POC
9.8 Mar 04

FlowiseAI Flowise version 2.2.6 contains an arbitrary file upload vulnerability in the /api/v1/attachments endpoint. Una

CVE-2025-61913 CRITICAL POC
9.9 Oct 08

Arbitrary file read and write in Flowise versions prior to 3.0.8 allows an authenticated attacker with access to the flo

CVE-2026-56274 HIGH POC
8.7 Jun 23

Remote code execution in Flowise before 3.1.2 allows any authenticated user (or API caller with chatflow view/update per

CVE-2025-58434 CRITICAL POC
9.8 Sep 12

Flowise is a drag & drop user interface to build a customized large language model flow. Rated critical severity (CVSS 9

CVE-2025-61687 HIGH POC
8.8 Oct 06

Authenticated users can upload arbitrary files to Flowise 3.0.7 due to missing validation, enabling persistent storage o

CVE-2026-30821 CRITICAL POC
9.8 Mar 07

Unrestricted file upload in Flowise LLM workflow builder before 3.0.13 via /api/v1/attachments endpoint allows unauthent

CVE-2026-30824 CRITICAL POC
9.8 Mar 07

Missing authentication on NVD data endpoint in Flowise before 3.0.13 allows unauthenticated access to internal vulnerabi

CVE-2025-34267 HIGH POC
8.4 Oct 14

Authenticated remote code execution in FlowiseAI Flowise (v3.0.1 up to but not including 3.0.8, and later versions when

CVE-2026-70470 CRITICAL POC
9.5 Aug 04

Remote code execution in Flowise before 3.1.3 arises because its Pyodide Python-code validator (validatePythonCodeForDat

CVE-2026-69264 CRITICAL POC
9.4 Aug 04

Remote code execution in FlowiseAI Flowise before 3.1.3 lets an attacker execute arbitrary OS commands as the Flowise pr

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