What is CVE-2026-42862?

CVE-2026-42862 is a medium-severity vulnerability in Flowiseai Flowise, classified under Improper Access Control. CVSS score: 5.0/10. Published 2026-06-08.

How severe is CVE-2026-42862?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Auth bypass in Flowiseai Flowise

CVE-2026-42862

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the tool update endpoint of FlowiseAI. The endpoint allows authenticated users to mo…

EPSS: 0.002 (9.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N.

Affected products

Flowiseai Flowise — versions < 3.1.2

Weakness classification (CWE)

References

security-advisories@github.com (Product, x_refsource_MISC, Release Notes)
security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42862?: CVE-2026-42862 is a medium-severity vulnerability in Flowiseai Flowise, classified under Improper Access Control. CVSS score: 5.0/10. Published 2026-06-08.
How severe is CVE-2026-42862?: Medium severity. CVSS v3 base score is 5.0 out of 10.