CVE-2026-48519 — Security Box Score

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Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-48519CRITICAL

langflow-ai langflow — Langflow: Unauthenticated RCE in Shareable Playgrounds

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  C  H  H  H    9.6   .0082   54.5     —

AFFECTED
  Product   Versions   Fixed
  langflow  < 1.9.2 –  —

TIMELINE
  May 21  Reserved by GitHub_M
  Jun 23  EXPLOIT PUBLISHED — CVE-2026-48519 (langflow-ai langflow). Public exploit reference added.
  Jun 23  Published (CNA: GitHub_M)

CWE-94 · CNA: GitHub_M · CVSS v3.1 · 1 reference · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 21, 2026	Reserved	Reserved by GitHub_M
June 23, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-48519 (langflow-ai langflow). Public exploit reference added.
June 23, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
langflow-ai	langflow	—	< 1.9.2	—

Weaknesses

CWE-94

References (1)

https://github.com/langflow-ai/langflow/security/advisories/GHSA-v5ff-9q35-q26f [Exploit, Vendor Advisory]

Authoritative record: CVE-2026-48519 at cve.org

Vendors: langflow-ai

Weaknesses: CWE-94

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-48519 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.