CVE-2026-9198
Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation
CVSS Score
9.8
EPSS Score
1.9%
EPSS Percentile
77th
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
| CWE | CWE-94 |
| Vendor | ibm |
| Product | langflow oss |
| Published | Jul 17, 2026 |
| Last Updated | Aug 5, 2026 |
⚠️ Actively Exploited — Act Now
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
IBM / Langflow OSS
1.0.0 ≤ 1.10.0