What is CVE-2026-9081?

CVE-2026-9081 is a high-severity vulnerability in IBM Langflow Oss, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.1/10. Published 2026-08-05.

How severe is CVE-2026-9081?

High severity. CVSS v3 base score is 7.1 out of 10.

SSRF in IBM Langflow Oss

CVE-2026-9081

IBM Langflow OSS 1.0.0 through 1.10.3, and 1.0.0 through 1.10.3 contains a Server-Side Request Forgery (SSRF) vulnerability in the validate_model_provider_key() function for the Ollama provider. The function accepts a user-supplied OLLAMA_BASE_URL parameter and passes it directly to requests.get() without validation, scheme/host allowlisting, or filtering of private IP ranges (loopback, RFC1918, link-local addresses).

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.002 (7.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N.

Affected products

Ibm Langflow Oss — versions 1.0.0
Langflow

Weakness classification (CWE)

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

References

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

Frequently asked questions

What is CVE-2026-9081?: CVE-2026-9081 is a high-severity vulnerability in IBM Langflow Oss, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.1/10. Published 2026-08-05.
How severe is CVE-2026-9081?: High severity. CVSS v3 base score is 7.1 out of 10.