CVE-2026-18894
Published:October 29, 2026
Updated:November 02, 2026
IBM Langflow OSS 1.0.0 through 1.12.4 could allow a remote attacker to trigger pre-existing stored Python component code in a public workflow, executing it under the flow owner's runtime context within the server process. This bypasses the intended trust boundary where public execution paths are restricted to server-trusted component code.
Affected Packages
langflow-base (CONDA):
Affected version(s) >=1.12.0 <1.12.5Fix Suggestion:
Update to version 1.12.5https://github.com/langflow-ai/langflow.git (GITHUB):
Affected version(s) >=1.3.0 <v1.12.5 || >=1.6.8 <v1.12.5Fix Suggestion:
Update to version v1.12.5langflow-base (PYTHON):
Affected version(s) >=0.3.0 <1.12.5 || >=1.12.0rc0 <1.12.5 || >=1.12.0 <1.12.5 || >=1.11.0.dev0 <1.12.5Fix Suggestion:
Update to version 1.12.5Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Control of Generation of Code
EPSS
Base Score:
0.52