IBM Langflow OSS 1.0.0 through 1.10.1 can allow an authenticated attacker to exploit the SaveToFile component to read and modify another user's uploaded files by specifying absolute paths pointing to victim storage locations. In append mode, the attacker's workflow reads victim file contents, appends attacker-controlled data, and uploads a copy containing victim data to the attacker's namespace (confidentiality breach). In overwrite mode, the attacker can replace victim file contents with arbitrary data (integrity breach).
This breaks the storage ownership boundary between users.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
Vulnerable Products 4
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Langflow Langflow
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
|
1.0.0
|
1.10.2
|
|
Apple Macos
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
|
— | — |
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
|
— | — |
|
Microsoft Windows
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
|
— | — |