IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/build_public_tmp/{flow_id}/flow ). The vu…

High CVSS 8.1

CVECVE-2026-13448

First seen2026-07-17 20:31 UTC

Disclosed2026-07-17 20:17 UTC

Last updated2026-07-17 20:31 UTC

Channel statusauto

Summary

IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/build_public_tmp/{flow_id}/flow ). The vulnerability stems from an incomplete denylist in the validate_public_flow_no_code_execution() function that fails to block several code-execution agent components including OpenDsStarAgent, CodeActAgentSmolagents, and CSVAgent.

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Sources

NVD DATABASE

Original Links

https://www.ibm.com/support/pages/node/7279997

Timeline

2026-07-17 nvd_ingest NVD