LangflowPublished 29 Oct 2026NVD status: Analyzed

CVE-2026-104317

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.

ComponentLangflow
Severityhigh (CVSS 8.1)
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published (NVD)2026-10-29
Last modified2026-10-30
Affected versions
>= 1.0.0, < 1.12.4
Fixed in1.12.4
WeaknessCWE-502
CISA KEVnot listed

Versions, checked against NVD

These are NVD's ranges. Neither a GitHub-reviewed advisory nor the CVE record gives versions to check them against yet.

NVD 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.

What to do

  • Upgrade Langflow to 1.12.4 or later.
  • Do not expose the component's API or UI to the internet without authentication in front of it.

Sources

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