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CVE-2026-73486

Flowise before 3.1.3 Code Injection via CSV Agent customReadCSV

Published: Aug 13, 2026Updated: Sep 3, 2026 Sources: CVE List NVDCWE-94
8.8HIGH
NVD MITRE
EPSS Score
0.7%
Top 50.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Flowise before 3.1.3 contains a code injection vulnerability in the CSV Agent node's customReadCSV parameter that allows authenticated attackers to execute arbitrary Python code. The validator uses a static regex blocklist that can be bypassed through obfuscation techniques, enabling attackers to execute code in the unsandboxed pyodide environment with full system access.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-94

Affected Products

FlowiseAI
oss-projectaka embed, flowise-components, flowise
FlowiseOn-premWeb App
AI / ML / ai-agent-tooling
and 1 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4878-cqgq-j53v
github.com
https://www.vulncheck.com/advisories/flowise-before-code-injection-via-csv-agent-customreadcsv
vulncheck.com
News mentions
1

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