CVE-2026-13448
Published:July 17, 2026
Updated:August 06, 2026
IBM Langflow OSS 1.0.0 through 1.10.1 Lanflow OSS contains an unauthenticated remote code execution vulnerability in the public flow build endpoint ( /api/v1/build_public_tmp/{flow_id}/flow ). The vulnerability stems from an incomplete denylist in the validate_public_flow_no_code_execution() function that fails to block several code-execution agent components including OpenDsStarAgent, CodeActAgentSmolagents, and CSVAgent.
Affected Packages
langflow (CONDA):
Affected version(s) =1.10.1 <1.10.2Fix Suggestion:
Update to version 1.10.2https://github.com/langflow-ai/langflow.git (GITHUB):
Affected version(s) >=v1.0.0 <v1.10.2Fix Suggestion:
Update to version v1.10.2langflow (PYTHON):
Affected version(s) >=1.0.0 <1.10.2Fix Suggestion:
Update to version 1.10.2Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Incomplete List of Disallowed Inputs
EPSS
Base Score:
0.46