What is CVE-2026-41277?

CVE-2026-41277 is a high-severity vulnerability in Flowiseai Flowise, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-04-23.

How severe is CVE-2026-41277?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Flowiseai Flowise

CVE-2026-41277

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Mass Assignment vulnerability in the DocumentStore creation endpoint allows authenticated users to control the primary key (id) and…

EPSS: 0.003 (25.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Flowiseai Flowise — versions < 3.1.0

Weakness classification (CWE)

CWE-284 — Improper Access Control
CWE-639 — Authorization Bypass Through User-Controlled Key
CWE-915 — Improperly Controlled Modification of Dynamically-Determined Object Attributes

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-41277?: CVE-2026-41277 is a high-severity vulnerability in Flowiseai Flowise, classified under Improper Access Control. CVSS score: 8.8/10. Published 2026-04-23.
How severe is CVE-2026-41277?: High severity. CVSS v3 base score is 8.8 out of 10.