LangflowPublished 29 Oct 2026NVD status: Analyzed

CVE-2026-104316

IBM Langflow OSS 1.0.0 through 1.12.3 could allow an authenticated attacker to cancel any victim's running background workflow job by sending a single HTTP request, resulting in loss of in-progress compute work with no…

ComponentLangflow
Severitymedium (CVSS 6.5)
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Published (NVD)2026-10-29
Last modified2026-10-30
Affected versions
>= 1.0.0, < 1.12.4
Fixed in1.12.4
WeaknessCWE-285
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 an authenticated attacker to cancel any victim's running background workflow job by sending a single HTTP request, resulting in loss of in-progress compute work with no flow-level permission check.

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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