CVE-2026-48519: Langflow unauthenticated RCE in playgrounds

# CVE-2026-48519: Langflow unauthenticated RCE in playgrounds

https://gcdradar.vercel.app/incidents/cve-2026-48519-langflow-unauthenticated-rce-in-playgrounds · AIR-2026-0731 · closed 2026-06-16

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-06-16
- AI role: Attack on AI
- Products: Langflow
- CVE ids: CVE-2026-48519
- CVSS: 9.6

## Summary

A critical remote code execution vulnerability in Langflow allows unauthenticated users to execute arbitrary Python code via shareable playgrounds. The flaw exists within public flow routing and custom node code execution.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-06-23: CVE-2026-48519: Langflow is a tool for building and deploying AI-powered agents and workflows. (https://nvd.nist.gov/vuln/detail/CVE-2026-48519)
- 2026-06-16: CVE-2026-48519: Langflow: Unauthenticated RCE in Shareable Playgrounds (https://github.com/advisories/GHSA-v5ff-9q35-q26f)

## Sources

- 2026-06-16 GitHub Advisory Database: CVE-2026-48519: Langflow: Unauthenticated RCE in Shareable Playgrounds https://github.com/advisories/GHSA-v5ff-9q35-q26f
- 2026-06-23 NVD: CVE-2026-48519: Langflow is a tool for building and deploying AI-powered agents and workflows. https://nvd.nist.gov/vuln/detail/CVE-2026-48519

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.