Dashboard / CVE-2026-70477

CVE-2026-70477

CRITICAL
INFO Priority: 0.08 BB Relevance: 69/100
Published: 2026-08-04 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: X
AT: Present
VC: High
VI: High
VA: High

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, a prompt injection sent to a chatflow using a CSV Agent node can cause the LLM to respond with a malicious Python script that bypasses the blocklist validator and executes in an unsandboxed Pyodide environment. The specific flaw exists within the run method of the CSV_Agents class, where untrusted data is used to construct an LLM prompt and the resulting pythonCode is validated by validatePythonCodeForDataFrame before execution. An attacker can leverage this to execute arbitrary code in the context of the service account. This issue is fixed in 3.1.3.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
flowiseai flowise < 3.1.3

References & Advisories (4)

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

9.5 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.81%
Raw Score 0.008140
Percentile 56.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00814
2026-10-28
0.00814

Intelligence Sources

nvd ref →

External Links