What is CVE-2026-9077?

CVE-2026-9077 is a high-severity vulnerability in Ibm Langflow Oss, classified under CWE-807. CVSS score: 8.5/10. Published 2026-08-05.

How severe is CVE-2026-9077?

High severity. CVSS v3 base score is 8.5 out of 10.

Vulnerability in Ibm Langflow Oss

CVE-2026-9077

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow allows remote authenticated attackers to bypass localhost-only restrictions and write arbitrary MCP server configurations to IDE configuration files on the host system.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N.

Affected products

Ibm Langflow Oss — versions 1.0.0

Weakness classification (CWE)

CWE-807

References

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

Frequently asked questions

What is CVE-2026-9077?: CVE-2026-9077 is a high-severity vulnerability in Ibm Langflow Oss, classified under CWE-807. CVSS score: 8.5/10. Published 2026-08-05.
How severe is CVE-2026-9077?: High severity. CVSS v3 base score is 8.5 out of 10.