CVE entry · CVE-2026-9198
CVE-2026-9198: IBM Langflow Code Injection Vulnerability
Langflow contains a code injection vulnerability that allows unauthenticated attackers to achieve full remote code execution on default Langflow deployments.
- Actively exploited: added to CISA’s KEV catalog on August 4, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: August 7, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes IBM Langflow, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.