CVE-2026-104317

High

Description

IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote attacker who could reach the message broker to execute arbitrary code on the system due to the deserialization of untrusted data.

SeverityHigh

CVSS8.1

Exploit probability—

Product

Langflow

PublishedOct 29, 2026

First seenNov 4, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

langflow langflow1.12.4 or later

Patches

ibm.com/support/pages/node/7293015

Affected products

Product	Affected versions	Fixed in
langflow langflow	1.0.0 ≤ v < 1.12.4	1.12.4

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