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NVD / CVE Program· CNA GitHub_M

CVE-2025-59528: Flowise has Remote Code Execution vulnerability

Noroxi assessment

Priority: This week (action score 66/100)

  • A ready-made attack module is public (Metasploit, Nuclei); exploiting it takes no special expertise.
  • Public proof-of-concept code exists (Exploit-DB, GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 86.4% (FIRST EPSS); higher than 99.7% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: FlowiseAI Flowise 3.0.6.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Don’t wait for the next maintenance window. Upgrade to FlowiseAI Flowise 3.0.6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, Flowise is vulnerable to remote code execution. The CustomMCP node allows users to input configuration settings for connecting to an external MCP server. This node parses the user-provided mcpServerConfig string to build the MCP server configuration. However, during this process, it executes JavaScript code without any security validation. Specifically, inside the convertToValidJSONString function, user input is directly passed to the Function() constructor, which evaluates and executes the input as JavaScript code. Since this runs with full Node.js runtime privileges, it can access dangerous modules such as child_process and fs. This issue has been patched in version 3.0.6.

CriticalCVSS 10.0 · v3.1—Weaponized Fix available
Published
Sep 22, 2025
Updated
Oct 18, 2026
EPSS
86.4% · 99th percentile

Report tools

JSON

Action score

66

This week

Don’t wait for the next maintenance window.

CVSS
40 / 40 · 10.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
26 / 30 · 86.4%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
10.0
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Weaponized exploit exists
  • A fix has been released

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
flowiseaiflowise

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • flowiseai flowise3.0.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • FlowiseAI Flowise

    • = 3.0.5affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
npmflowisefrom 3.0.5 · before 3.0.63.0.6

Same product

flowiseai: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-58434Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover
    64This week
  • CVE-2025-8943Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers
    62This week
  • CVE-2026-41264Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
    60This week

Published before and after this one in the same product

  • ← EarlierCVE-2025-59434Sep 22, 2025 · Critical Multi-Tenant Variable Disclosure in Flowise Cloud via Custom JavaScript Function
    39Monitor
  • ← EarlierCVE-2025-59527Sep 22, 2025 · FlowiseAI/Flowise has Server-Side Request Forgery (SSRF) vulnerability
    32Monitor
  • Later →CVE-2025-29192Oct 6, 2025 · Flowise before 3.0.5 allows XSS via a FORM element and an INPUT element when an admin views the chat log.
    24Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
FlowiseAI Flowise3.0.6 · descriptionVendor (CNA)
npm:flowise3.0.6Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×1
  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×13

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2025-59528 —
Exploit-DB entrywebapps2025-10-31
Metasploit moduleexploit/multi/http/flowise_js_rceFlowise JS Injection RCEexploit2025-09-13
Proof-of-concept repository on GitHubstars:02025-11-02
Proof-of-concept repository on GitHubstars:12026-04-13
Proof-of-concept repository on GitHubstars:12026-04-13
Proof-of-concept repository on GitHubstars:12026-04-15
Proof-of-concept repository on GitHubstars:12026-04-15
Proof-of-concept repository on GitHubstars:12026-05-01
Proof-of-concept repository on GitHubstars:12026-05-16
Proof-of-concept repository on GitHubstars:12026-05-17
Proof-of-concept repository on GitHubstars:02026-06-09

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Metasploit-10 d
  2. Published
  3. First PoC+38 d
  4. TodayNov 6, 2026+410 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-31621511 days apartAn issue in FlowiseAI Inc Flowise v.1.6.2 and before allows a remote attacker to execute arbitrary code via a crafted script to the api/v1 c
    48Plan
  • CVE-2026-46442259 days apartFlowise: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape
    47Plan
  • CVE-2026-52098353 days apartAn issue in Flowise 3.1.2 allows a remote attacker to execute arbitrary code via the /api/v1/prediction/<flowId> endpoint
    39Monitor
  • CVE-2026-70477316 days apartFlowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
    38Monitor
  • CVE-2026-41137213 days apartFlowise: Code Injection in CSVAgent leads to Authenticated RCE
    37Monitor
  • CVE-2026-69259316 days apartFlowise RCE via SQLite Record Manager Node
    37Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-94 · Improper Control of Generation of Code ('Code Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records