What is CVE-2026-10140?

CVE-2026-10140 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.6/10. Published 2026-06-30.

How severe is CVE-2026-10140?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Auth bypass in Ibm Langflow Oss

CVE-2026-10140

IBM Langflow OSS 1.0.0 through 1.10.0 voice mode contains improper shared-state handling that allows reuse of API clients across tenant boundaries. An authenticated attacker can manipulate cache state to cause requests from other users to…

Vulnerability class: IDOR (Insecure Direct Object Reference)

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N.

Affected products

Ibm Langflow Oss — versions 1.0.0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

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

Frequently asked questions

What is CVE-2026-10140?: CVE-2026-10140 is a critical-severity vulnerability in Ibm Langflow Oss, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 9.6/10. Published 2026-06-30.
How severe is CVE-2026-10140?: Critical severity. CVSS v3 base score is 9.6 out of 10.