What is CVE-2026-10547?

CVE-2026-10547 is a medium-severity vulnerability in Ibm Langflow Oss, classified under Improper Access Control. CVSS score: 5.9/10. Published 2026-08-05.

How severe is CVE-2026-10547?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Ibm Langflow Oss

CVE-2026-10547

IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/{flow_id}/vertices endpoint, allowing an authenticated user to inject arbitrary graph data into a shared cache for any flow. Th…

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L.

Affected products

Ibm Langflow Oss — versions 1.0.0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

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

Frequently asked questions

What is CVE-2026-10547?: CVE-2026-10547 is a medium-severity vulnerability in Ibm Langflow Oss, classified under Improper Access Control. CVSS score: 5.9/10. Published 2026-08-05.
How severe is CVE-2026-10547?: Medium severity. CVSS v3 base score is 5.9 out of 10.