What is CVE-2026-48520?

CVE-2026-48520 is a medium-severity vulnerability in Langflow, classified under External Control of File Name or Path. CVSS score: 6.1/10. Published 2026-06-23.

How severe is CVE-2026-48520?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Vulnerability in Langflow

CVE-2026-48520

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 conf…

EPSS: 0.004 (33.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Langflow
Langflow-ai Langflow — versions < 1.10.0

Weakness classification (CWE)

CWE-73 — External Control of File Name or Path

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-48520?: CVE-2026-48520 is a medium-severity vulnerability in Langflow, classified under External Control of File Name or Path. CVSS score: 6.1/10. Published 2026-06-23.
How severe is CVE-2026-48520?: Medium severity. CVSS v3 base score is 6.1 out of 10.