What is CVE-2026-81213?

CVE-2026-81213 is a high-severity vulnerability in IBM Langflow Oss, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-09-10.

How severe is CVE-2026-81213?

High severity. CVSS v3 base score is 8.6 out of 10.

SSRF in IBM Langflow Oss

CVE-2026-81213

IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to obtain sensitive information from internal network resources due to improper validation of user-supplied URLs.

Vulnerability class: SSRF (Server-Side Request Forgery)

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.

Affected products

Ibm Langflow Oss

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

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

Frequently asked questions

What is CVE-2026-81213?: CVE-2026-81213 is a high-severity vulnerability in IBM Langflow Oss, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.6/10. Published 2026-09-10.
How severe is CVE-2026-81213?: High severity. CVSS v3 base score is 8.6 out of 10.