CVE-2026-9135: langflow from 1.0.0 (inclusive), before 1.10.1 (exclusive); +1 more affected products

Affected technology

langflow · from 1.0.0 (inclusive), before 1.10.1 (exclusive)
langflow

Langflow OSS · 1.0.0 through 1.10.0
IBM

Description’s affected range: through 1.10.0 Langflow versions up to 1.9.2 (commit 94981c443d4918517b9e8163d70fc598dc33a32d)

Component: Not specified by the source

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

What an attacker can do

Attackers can embed malicious Python code in these unvalidated dynamic fields, which are persisted in Flow.data and later executed server-side when a guarded tool is invoked through the ToolGuard runtime. Vendor/CNA’s CVSS 3.1 assessment (base score 9.9/10) rates confidentiality, integrity and availability impact as high.