CVE-2026-9081

High

Description

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).

SeverityHigh

CVSS7.1

Exploit probability—

Product

Langflow

PublishedAug 5, 2026

First seenAug 5, 2026

Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update

langflow langflow1.11.0 or later

Patches

ibm.com/support/pages/node/7282650

Affected products

Product	Affected versions	Fixed in
langflow langflow	1.0.0 ≤ v < 1.11.0	1.11.0

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