CVE-2026-6542
Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id
- State
- Published
- Severity
- 6.5 Medium
- Published
- Apr 30, 2026
- Updated
- May 1, 2026
- Reserved
- Apr 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | ibm |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
Langflow OSSIBM |
|
References
- https://www.ibm.com/support/pages/node/7270886vendor-advisorypatch
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