CVE-2026-93447: Langflow

High severity, CVSS 7.5. EPSS: 0.4% chance of exploitation in the next 30 days.

IBM Langflow OSS 1.0.0 through 1.12.2 could allow an attacker with access to the server secret and Redis write access to submit a malicious serialized cache value. When the value was retrieved, deserialization could have executed attacker-controlled code with the privileges of the service process.

Affected products

• Langflow Langflow: from 1.0.0, before 1.12.3 (fixed in 1.12.3)

Published 2026-10-07. Last modified 2026-10-08.