CVE-2026-100605 Flowise through 3.1.4 Missing Authorization via Chat Message Routes
Low-privileged API keys can read and delete chat histories due to missing authorization checks on chat message routes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-100605?
CVE-2026-100605 is a high-severity missing authorization vulnerability in FlowiseAI Flowise, published on 26 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-100605?
How do I fix CVE-2026-100605?
No fix has been published for CVE-2026-100605 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-100605 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100605 exists.
Sources
Also known as GHSA-fx3r-9cwr-p5w6, GHSA-ppmg-4cx6-95hh.