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CVE-2026-9198 IBM Langflow OSS

IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments

CVSS
9.8 Critical
EPSS
29%
Percentile
98
Published
2026-07-17
Force
11 of 12
Public PoC
10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-94

On CISA’s exploited list

IBM Langflow Code Injection Vulnerability

Added
2026-08-04
Federal patch deadline
2026-08-07
Ransomware use
not known