Vulnerability · Published Apr 23, 2026 · Assigned by GitHub_M

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

High 7.1

In plain English

A high-severity server-side request forgery in Flowise from FlowiseAI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 82.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	flowise	3.1.0	GHSA-2x8m-83vc-6wv4
npm	flowise-components	3.1.0	GHSA-2x8m-83vc-6wv4

Affected products (as reported)

Vendor	Product	Versions
FlowiseAI	Flowise	< 3.1.0
FlowiseAI	flowise-components	< 3.1.0

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

References

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