What is CVE-2026-8505?

CVE-2026-8505 is a critical-severity vulnerability in Ibm Langflow Oss. CVSS score: 9.8/10. Published 2026-07-17.

How severe is CVE-2026-8505?

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

Vulnerability in Ibm Langflow Oss

CVE-2026-8505

IBM Langflow OSS 1.0.0 through 1.10.0 has a vulnerability in Langflow's webhook authentication logic allows unauthenticated users to trigger the execution of any flow. The system incorrectly bypasses API key validation when the WEBHOOK_AUT…

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

References

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

Frequently asked questions

What is CVE-2026-8505?: CVE-2026-8505 is a critical-severity vulnerability in Ibm Langflow Oss. CVSS score: 9.8/10. Published 2026-07-17.
How severe is CVE-2026-8505?: Critical severity. CVSS v3 base score is 9.8 out of 10.