CVE-2026-10547
Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement
- State
- Published
- Severity
- 5.9 Medium
- Published
- Aug 5, 2026
- Updated
- Aug 5, 2026
- Reserved
- Jun 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L | ibm |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
Langflow OSSIBM |
|
References
- https://www.ibm.com/support/pages/node/7282647vendor-advisorypatch
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