What is CVE-2026-7803?

CVE-2026-7803 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2026-06-30.

How severe is CVE-2026-7803?

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

Improper input validation in Ibm Langflow Oss

CVE-2026-7803

IBM Langflow OSS 1.0.0 through 1.10.0 could allow arbitrary code execution due to improper validation of flow nodes with missing or empty component type fields.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

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-20 — Improper Input Validation

References

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

Frequently asked questions

What is CVE-2026-7803?: CVE-2026-7803 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2026-06-30.
How severe is CVE-2026-7803?: Critical severity. CVSS v3 base score is 9.8 out of 10.