CVE-2025-59527 FlowiseAI/Flowise has Server-Side Request Forgery (SSRF) vulnerability

What is CVE-2025-59527?

CVE-2025-59527 is a high-severity server-side request forgery vulnerability in Flowiseai Flowise, published on 22 Sep 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Flowise is a drag & drop user interface to build a customized large language model flow. In version 3.0.5, a Server-Side Request Forgery (SSRF) vulnerability was discovered in the /api/v1/fetch-links endpoint of the Flowise application. This vulnerability allows an attacker to use the Flowise server as a proxy to access internal network web services and explore their link structures. This issue has been patched in version 3.0.6.

Weakness: CWE-918

Which versions are affected by CVE-2025-59527?

2 open source packages ship an affected version, including flowise. It affects 1 product.

Products include Flowiseai Flowise.

How do I fix CVE-2025-59527?

Upgrade flowise to 3.0.6 or later.

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

Is CVE-2025-59527 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-59527 exists.

Other vulnerabilities in Flowiseai Flowise

• CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API Critical 10.0
• CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters Critical 10.0
• CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write Critical 10.0
• CVE-2025-59528 Flowise has Remote Code Execution vulnerability Critical 10.0
• CVE-2026-52098 Code injection in n/a Critical 9.8

All Flowiseai Flowise vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hr92-4q35-4j3m.