Critical
Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
Type: advisorySources: OSV
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM generated python script. An attacker can leverage this vulnerability to execute code in the context of the user running the server. Using prompt injection techniques, an unauthenticated attacker with the ability to send prompts to a chatflow using the CSV Agent node may convince an LLM to respond with a malicious python script that executes attacker controlled commands on the Flowise server. This vulnerability is fixed in 3.1.0.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-41264
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 18:53 UTC · Revision 1
Source evidence
Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability
core-osv · Original sourcePublished 23 Apr 2026, 20:00 UTC
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM generated python script. An attacker can leverage this vulnerability to execute code in the context of the user running the server. Using prompt injection techniques, an unauthenticated attacker with the ability to send prompts to a chatflow using the CSV Agent node may convince an LLM to respond with a malicious python script that executes attacker controlled commands on the Flowise server. This vulnerability is fixed in 3.1.0.
osv:CVE-2026-41264
Complete source record
{
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"url": "https://osv.dev/vulnerability/CVE-2026-41264",
"method": "structured",
"payload": {
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"title": "Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability",
"summary": "Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the specific flaw exists within the run method of the CSV_Agents class. The issue results from the lack of proper sandboxing when evaluating an LLM generated python script. An attacker can leverage this vulnerability to execute code in the context of the user running the server. Using prompt injection techniques, an unauthenticated attacker with the ability to send prompts to a chatflow using the CSV Agent node may convince an LLM to respond with a malicious python script that executes attacker controlled commands on the Flowise server. This vulnerability is fixed in 3.1.0.",
"evidence": "osv:CVE-2026-41264",
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"modified": "2026-10-28T02:30:31.701852819Z",
"provider": "osv",
"references": [
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"source_id": "core-osv",
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"published_at": "2026-04-23T20:00:19.166+00:00"
}