CVE-2026-9198NVD

Vulnerability Summary

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

Severity Level

CRITICAL(9.8)

Published Date

Jul 17, 2026

Last Modified

Oct 24, 2026

PoC

Available(Metasploit, Nuclei)

Exploitation Status

ACTIVE

EPSS Score (30-Day)

28.66%Probability

Root Weakness (CWE)

CWE-94: Code Injection ↗

The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended syntax or behavior.

CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Langflow Langflow >= 1.0.0 and < 1.10.1

Patched Versions

Langflow Langflow 1.10.1

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