Description
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.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
patch
https://www.ibm.com/support/pages/node/7279997
Scores
CVSS v3
8.1
EPSS
0.0046
EPSS Percentile
37.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-184
Status
published
Products (2)
IBM/Langflow OSS
1.0.0 - 1.10.1
langflow/langflow
1.0.0 - 1.10.2
Published
Jul 17, 2026
Tracked Since
Jul 18, 2026