CVE-2026-10547

MEDIUM

Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-10547 has a selected CVSS score of 5.9 (medium).

Description

IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/{flow_id}/vertices endpoint, allowing an authenticated user to inject arbitrary graph data into a shared cache for any flow. This may result in cross-user cache pollution, unauthorized workflow execution, or denial of service.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Aug 5, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Langflow OSS

Browse IBM / Langflow OSS
CVE List1.0.0 to ≤ 1.10.3affected

References

2