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Vulnerability IntelligenceCVE-2026-9198

CVE-2026-9198

CRITICAL9.8

Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

Published Jul 17, 2026

Modified 1 months ago

Details

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

References

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-9198

https://www.cve.org/CVERecord?id=CVE-2026-9198

https://www.ibm.com/support/pages/node/7278927

CVSS Analysis

CVSS v3.1

9.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Weakness Type (CWE)

Injection

Ecosystems

Timeline

PublishedJul 17, 2026

ModifiedAug 17, 2026

CVE-2026-9198 | Mondoo Vulnerability Intelligence