What is the CVSS score of CVE-2025-59527?

CVE-2025-59527 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.1%.

Which versions of Flowise are affected by CVE-2025-59527?

Organizations using Flowise face notable risk from CVE-2025-59527, a server-side request forgery vulnerability rated CVSS 7.5.. A patch is available.

Is there a public PoC exploit available for CVE-2025-59527?

Yes, a public proof-of-concept exploit is available for CVE-2025-59527. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2025-59527?

Within 7 days: Identify all affected systems and apply vendor patches promptly. Implement egress filtering and URL validation for server-side requests.

Flowise CVE-2025-59527

HIGH

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

2025-09-22 security-advisories@github.com

SSRF Flowise

7.5

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 19:13 vuln.today

PoC Detected

Sep 23, 2025 - 16:47 vuln.today

Public exploit code

CVE Published

Sep 22, 2025 - 20:15 nvd

HIGH 7.5

DescriptionGitHub Advisory

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.

AnalysisAI

Flowise is a drag & drop user interface to build a customized large language model flow. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. 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. Affected products include: Flowiseai Flowise. Version information: version 3.0.5.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.

CVE-2025-59527 vulnerability details – vuln.today

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Flowise CVE-2025-59527

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code