What is CVE-2026-17623?

CVE-2026-17623 is a high-severity vulnerability in Ibm Langflow Oss, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-08-05.

How severe is CVE-2026-17623?

High severity. CVSS v3 base score is 8.8 out of 10.

RCE in Ibm Langflow Oss

CVE-2026-17623

IBM Langflow OSS 1.0.0 through 1.10.3 could allow a remote authenticated attacker to execute arbitrary commands due to improper validation of the command field in MCP server configurations.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Langflow Oss — versions 1.0.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

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

Frequently asked questions

What is CVE-2026-17623?: CVE-2026-17623 is a high-severity vulnerability in Ibm Langflow Oss, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-08-05.
How severe is CVE-2026-17623?: High severity. CVSS v3 base score is 8.8 out of 10.