AI agent vulnerability · Langflow

CVE-2026-6597: Langflow has an Information Leak through Incomplete API Key Redaction

lowCVSS 4.0 2.0 · 3.1 2.7GHSA-5jjf-wcvf-923w

A weakness has been identified in langflow-ai langflow up to 1.8.3. Impacted is the function removeapikeys/hasapiterms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. This manipulation causes unprotected storage of credentials. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Published Apr 20, 2026 · Updated Apr 24, 2026

Affected packages

langflow

Ecosystem: PyPI
Affected: <= 1.8.3
Fixed in: No patched version yet
Check: pip show langflow

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

A weakness has been identified in langflow-ai langflow up to 1.8.3. Impacted is the function remove_api_keys/has_api_terms of the file src/backend/base/langflow/api/utils/core.py of the component Flow Using API. This manipulation causes unprotected storage of credentials. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

More Langflow vulnerabilities

All Langflow entries