CVE-2026-6542
Medium
Description
IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Langflow
PublishedApr 30, 2026
First seenApr 30, 2026
How to fix
Update
- langflow langflow1.9.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| langflow langflow | 1.0.0 ≤ v < 1.9.0 | 1.9.0 |
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