What is CVE-2026-9198?

CVE-2026-9198 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Code Injection. CVSS score: 9.8/10. Published 2026-07-17.

How severe is CVE-2026-9198?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Ibm Langflow Oss

CVE-2026-9198

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 Lan…

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Langflow Oss — versions 1.0.0

Weakness classification (CWE)

CWE-94 — Code Injection

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-9198?: CVE-2026-9198 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Code Injection. CVSS score: 9.8/10. Published 2026-07-17.
How severe is CVE-2026-9198?: Critical severity. CVSS v3 base score is 9.8 out of 10.