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

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-09-22 · updated 2026-10-11
Weakness: CWE-918

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.

Affected products

FlowiseAI Flowise: 3.0.5

References

https://github.com/FlowiseAI/Flowise/blob/5930f1119c655bcf8d2200ae827a1f5b9fec81d0/packages/components/src/utils.ts#L474-L478
https://github.com/FlowiseAI/Flowise/blob/5930f1119c655bcf8d2200ae827a1f5b9fec81d0/packages/server/src/controllers/fetch-links/index.ts#L6-L24
https://github.com/FlowiseAI/Flowise/blob/5930f1119c655bcf8d2200ae827a1f5b9fec81d0/packages/server/src/services/fetch-links/index.ts#L8-L18
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.6
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-hr92-4q35-4j3m

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