Security advisory
IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant validation due to improper handling of LLM‑generated components. The application executes model‑generated Python code in the backend during validation prior to user approval, which may allow an attacker to trigger side effects such as outbound network access, file system interaction, or data exfiltration with the privileges of the Langflow backend process.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-9196
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:34 UTC · Revision 1
Source evidence
IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant validation due to improper handling of LLM‑generated components. The application executes model‑generated Python code in the backend during validation prior to user approval, which may allow an attacker to trigger side effects such as outbound network access, file system interaction, or data exfiltration with the privileges of the Langflow backend process.
osv:CVE-2026-9196
Complete source record
{
"id": "cb18fcd0ca400aa40070dbab0c9f5734858f545675c0c10b4b1ad5099378e3cb",
"url": "https://osv.dev/vulnerability/CVE-2026-9196",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2026-9196",
"summary": "IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute unintended code during Agentic Assistant validation due to improper handling of LLM‑generated components. The application executes model‑generated Python code in the backend during validation prior to user approval, which may allow an attacker to trigger side effects such as outbound network access, file system interaction, or data exfiltration with the privileges of the Langflow backend process.",
"evidence": "osv:CVE-2026-9196",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-9196",
"aliases": [
"CVE-2026-9196"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/langflow-ai/langflow",
"type": "GIT",
"events": [
{
"introduced": "24d9e86885b877ea3e9d03cbc50b963765489721"
},
{
"fixed": "f307634e708a3247d23276943c4b848b15e19e84"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.0.0"
},
{
"fixed": "1.11.0"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-9196.json"
}
}
],
"modified": "2026-10-26T02:30:58.183096791Z",
"provider": "osv",
"references": [
"https://www.ibm.com/support/pages/node/7282646"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2026-9196",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 446680,
"published_at": "2026-08-05T19:17:48.523+00:00"
}