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CVE-2026-9198

IBM Langflow Code Injection Vulnerability

IBM Langflow CWE-94

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 Score
9.8
Critical
EPSS — Exploit Probability
61%
Riskier than 99% of all CVEs · checked 2026-09-17
Exploitation
Confirmed in the wild
KEV since 2026-08-04
Remediation
Patch available
Federal deadline 2026-08-07
CISA required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. Deadline for federal agencies: 2026-08-07.

NVD entry Vendor patch PoC / advisory CISA KEV

6 articles across 5 outlets · first covered Aug 4, 2026 · latest Aug 5, 2026

Coverage timeline

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