---
id: CVE-2026-9198
title: >-
  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 L…
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 L…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
published: '2026-07-17'
updated: '2026-07-18'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-9198'
references:
  - url: 'https://www.ibm.com/support/pages/node/7278927'
    label: psirt@us.ibm.com
tags:
  - nvd
  - kev
  - in-the-wild
  - exploit-available
epss: 0.60597
epssPercentile: 0.9913
ingestedAt: '2026-07-18T21:25:07.884Z'
kev: true
exploited: true
kevDateAdded: '2026-08-04'
kevDueDate: '2026-08-07'
kevRansomware: false
exploitAvailable: true
exploits:
  exploitdb: true
  github: 9
  githubRepos:
    - 'https://github.com/0xgh057r3c0n/CVE-2026-9198'
    - 'https://github.com/0xdak/CVE-2026-9198_exploit'
    - 'https://github.com/rmhowe425/PoC-CVE-2026-9198'
  metasploit:
    - exploit/multi/http/langflow_unauth_rce_cve_2026_9198
  nuclei:
    - CVE-2026-9198
  checkedAt: '2026-09-21T15:31:26.706Z'
---

## Overview

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

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.