CVE-2026-48520CWE-73

Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read

Medium · published June 23, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
37.0
In the wild
Unconfirmed
What it is

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.10.0, the "Shareable Playground" (or "Public Flows" in code) contains a potential arbitrary file-read vulnerability, depending on the exact flow configuration used. By making a flow public, public execution of the flow is allowed. The execution request can contain a list of files that gets read by Langflow and fed into the LLM. The files path can be any path supported by the storage - it can be either a local file or S3 path if supported by the local configuration This vulnerability is fixed in 1.10.0.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00437 · 37.0th percentile
Weakness
CWE-73 · External Control of File Name or Path
Published
2026-06-23T16:31Z
EPSS history
Timeline
  • 23 JUN 16:31Z
    Langflow: Unauthenticated Shareable Playground arbitrary local or S3 file read
    cvelistv5