CVE-2026-6597langflow-ai langflow Flow Using API core.py has_api_terms credentials storage

Description

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-358232 | langflow-ai langflow Flow Using API core.py has_api_terms credentials storage vdb-entrytechnical-description
• VDB-358232 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
• Submit #791920 | Langflow <= 1.8.3 Information Disclosure third-party-advisory
• https://gist.github.com/chenhouser2025/b93261c6e651f14800a4f2e4365f357b exploit