CVE-2026-10547: langflow from 1.0.0 (inclusive), before 1.11.0 (exclusive); +1 more affected products

Affected technology

langflow · from 1.0.0 (inclusive), before 1.11.0 (exclusive)
langflow

Langflow OSS · 1.0.0 through 1.10.3
IBM

Description’s affected range: through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/{flow_id}/vertices endpoint

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

Attack conditions (NVD, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

An authenticated user can inject arbitrary graph data into a shared cache for any flow. Vendor/CNA’s CVSS 3.1 assessment (base score 5.9/10) rates confidentiality impact as none; integrity impact as high; availability impact as low. NVD’s CVSS 3.1 assessment (base score 8.1/10) rates confidentiality impact as none; integrity and availability impact as high.