Flowise LLM app builder patched after critical code execution vulnerability

By PulseAugur Editorial · [1 sources] · 2026-10-05 14:21

A critical vulnerability, CVE-2026-41264, has been identified in Flowise, an open-source tool for building LLM applications. The flaw allowed prompt injections to execute arbitrary code on the server by exploiting a regex check that failed to properly validate model-generated Python code. Researchers initially reported the bug, and after several attempts to patch it, the Flowise team ultimately removed the feature entirely due to ongoing security issues. AI

IMPACT Highlights the critical need for robust security in LLM application builders, especially when handling model-generated code.

RANK_REASON The cluster describes a security vulnerability and its resolution in a specific software tool, not a frontier model release or significant industry-wide event.

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Flowise LLM app builder patched after critical code execution vulnerability

How we ranked this

Signal score: 8 / 100; Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket: Tool; The cluster describes a security vulnerability and its resolution in a specific software tool, not a frontier model release or significant industry-wide event.
Source corroboration: Single-source cluster; Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics: product, safety; Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance: High; Clearly on-topic for AI-industry coverage.
Story freshness: Breaking (< 6h); Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

dev.to — LLM tag TIER_1 English(EN) · Charles Givre · 2026-10-05 14:21

CVE-2026-41264: How a Regex Let Prompts Run Code in Flowise

<div class="highlight js-code-highlight"> <pre class="highlight python"><code>import pandas as np, os as <span class="…

How we ranked this

COVERAGE [1]

CVE-2026-41264: How a Regex Let Prompts Run Code in Flowise

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