CVE-2026-48519

Langflow: Unauthenticated RCE in Shareable Playgrounds

Description

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" (or "Public Flows" in code) contains a critical RCE vulnerability. Shareable Playground feature works by enabling the execution of workflows by unauthenticated users, by accessing a link. Specifically, it enables the route /api/v1/build_public_tmp to execute any public flow, given a public flow ID. When the route executes the flow, it allows for providing arbitrary custom Python code as the nodes code, inside the JSON payload. The vulnerable field is data.nodes[X].data.node.template.code.value. This vulnerability is fixed in 1.9.2.

Scores

Faiblesses (CWE)

• CWE-94

Avis

• GHSA-v5ff-9q35-q26f — Langflow: Unauthenticated RCE in Shareable Playgrounds
• PYSEC-2026-243 — Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.2, the "Shareable Playground" (or "Public Flows" in code) contains a

Références européennes

• ENISA EUVD · EUVD-2026-38514
• GCVE · GCVE-0-2026-48519

Configurations affectées (CPE NVD)

• cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:* < 1.9.2

Produits affectés

Références

• https://github.com/langflow-ai/langflow/security/advisories/GHSA-v5ff-9q35-q26f

Sources