What is CVE-2026-93680?

CVE-2026-93680 is a critical-severity vulnerability in IBM Langflow Oss, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-10-29.

How severe is CVE-2026-93680?

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

Auth bypass in IBM Langflow Oss

CVE-2026-93680

IBM Langflow OSS 1.0.0 through 1.12.8 could allow a remote attacker to bypass security restrictions due to improper authentication.

Vulnerability class: Broken Authentication

Published 2026-10-29 · last modified 2026-10-29.

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Langflow Oss

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

www.ibm.com/support/pages/node/7294467 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-93680?: CVE-2026-93680 is a critical-severity vulnerability in IBM Langflow Oss, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-10-29.
How severe is CVE-2026-93680?: Critical severity. CVSS v3 base score is 9.8 out of 10.