CVE-2026-100605

high

Description

Flowise through 3.1.4 contains missing route-level RBAC checks on chat message endpoints that allow low-privileged API keys to read and delete chat history. Attackers with valid but low-privileged API keys can access GET and DELETE chat message routes without required flow permissions to read chat histories, prompts, model responses, and delete messages.

References

https://www.vulncheck.com/advisories/flowise-through-3.1.4-missing-authorization-via-chat-message-routes

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-ppmg-4cx6-95hh

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-87700

Details

Source: Mitre, NVD

Published: 2026-09-26

Updated: 2026-09-30

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Severity: High

CVSS v4

Base Score: 7.5

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.00216