External Control of File Name or Path Affecting lfx package, versions [,1.10.0)
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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Test your applications- Snyk IDSNYK-PYTHON-LFX-17398211
- published22 Jun 2026
- disclosed16 Jun 2026
- creditOri Lahav
Introduced: 16 Jun 2026
CVE-2026-48520 (opens in a new tab)How to fix?
Upgrade lfx to version 1.10.0 or higher.
Overview
lfx is a lfx is a command-line tool for running Langflow workflows. It provides two main commands: serve and run.
Affected versions of this package are vulnerable to External Control of File Name or Path via the files field in the public flow execution. An attacker can access arbitrary local or S3 files by submitting specially crafted file paths when triggering a public flow execution.