CVE-2026-3357 PUBLISHED

IBM Langflow Desktop FAISS Vector Store Remote Code Execution via malicious Pickle file

Assigner: ibm
Reserved: 27.02.2026 Published: 08.04.2026 Updated: 08.04.2026

IBM Langflow Desktop 1.6.0 through 1.8.2 Langflow could allow an authenticated user to execute arbitrary code on the system, caused by an insecure default setting which permits the deserialization of untrusted data in the FAISS component.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	Low	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	IBM
Product	Langflow Desktop
Versions	affected from 1.6.0 to 1.8.2 (incl.)

Solutions

IBM recommends addressing the vulnerability now by upgrading to IBM Langflow Desktop 1.8.3 or newer https://www.langflow.org/blog/langflow-1-8-desktop

If you are already using Langflow Desktop, upgrade in the application to version 1.8.3

To install Langflow Desktop for the first time, visit Download Langflow Desktop https://langflow.org/desktop .

Credits

This vulnerability was reported to IBM by Weblover. finder

References

https://www.ibm.com/support/pages/node/7268428

Problem Types

CWE-502 Deserialization of Untrusted Data CWE