Arbitrary Code Injection Affecting langflow package, versions [,1.9.2)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PYTHON-LANGFLOW-17400033
- published22 Jun 2026
- disclosed16 Jun 2026
- creditOri Lahav
Introduced: 16 Jun 2026
CVE-2026-48519 (opens in a new tab)How to fix?
Upgrade langflow to version 1.9.2 or higher.
Overview
langflow is an A Python package with a built-in web application
Affected versions of this package are vulnerable to Arbitrary Code Injection via the data.nodes[X].data.node.template.code.value field. An authenticated user can execute arbitrary code on the server by submitting specially crafted JSON payloads to the /api/v1/build_public_tmp endpoint.