CVE-2026-7657 Langflow OSS is affected by server-side request forgery in provider validation and API request functionality

Medium 6.5 Published Updated

Attackers can exploit SSRF in Langflow OSS to access internal resources or bypass security controls via provider validation and API requests.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-7657?

CVE-2026-7657 is a medium-severity server-side request forgery vulnerability in Langflow Langflow, published on 5 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Langflow OSS 1.0.0 through 1.10.3 Langflow could allow server-side request forgery (SSRF) due to incomplete and ineffective SSRF protection enforcement.

Weakness: CWE-918

Which versions are affected by CVE-2026-7657?

It affects 1 product.

Products include Langflow Langflow.

How do I fix CVE-2026-7657?

No fix has been published for CVE-2026-7657 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-7657 being exploited?

There is no known exploitation of CVE-2026-7657 in the wild and no public exploit code.

All Langflow Langflow vulnerabilities

Sources

Also known as GHSA-94h9-q657-456h.

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