CVE-2026-41272CWE-918

Flowise: SSRF Protection Bypass (TOCTOU & Default Insecure)

High · published April 23, 2026

CVSS v3.1
7.1
EPSS
0%
Percentile
27.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00354 · 27.9th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-04-23T19:16Z
EPSS history
Timeline
  • 23 APR 19:16Z
    Flowise: SSRF Protection Bypass (TOCTOU & Default Insecure)
    cvelistv5