What’s Vulnerable › Vulnerabilities

CVE-2026-41272: Flowise: SSRF Protection Bypass (TOCTOU & Default Insecure)

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-23 · updated 2026-10-26
• Weakness: CWE-918

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the core security wrappers (secureAxiosRequest and secureFetch) intended to prevent Server-Side Request Forgery (SSRF) contain multiple logic flaws. These flaws allow attackers to bypass the allow/deny lists via DNS Rebinding (Time-of-Check Time-of-Use) or by exploiting the default configuration which fails to enforce any deny list. This vulnerability is fixed in 3.1.0.

Affected products

• FlowiseAI Flowise: before 3.1.0 — fixed in 3.1.0

How to fix

Upgrade to a fixed version: FlowiseAI Flowise 3.1.0. Check the vendor advisory for mitigations.

References

• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2x8m-83vc-6wv4
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-2x8m-83vc-6wv4

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