Auth bypass in Flowiseai Flowise
CVE-2026-100605
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/FlowiseAI/Flowise/security/advisories/GHSA-ppmg-4cx6-95hh (vendor-advisory)
- www.vulncheck.com/advisories/flowise-through-3.1.4-missing-authorization-via-ch… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100605?
- CVE-2026-100605 is a high-severity vulnerability in Flowiseai Flowise, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-26.
- How severe is CVE-2026-100605?
- High severity. CVSS v3 base score is 7.1 out of 10.