CVE-2026-70473 Flowise: Information Disclosure in GET /api/v1/upsert-history returns the entire server-wide upsert history
Attackers can access server-wide upsert history containing sensitive configuration data due to missing authorization checks in Flowise.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-70473?
CVE-2026-70473 is a high-severity vulnerability in Flowiseai Flowise, published on 4 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Flowise is a drag-and-drop user interface for building customized large language model (LLM) flows. Prior to 3.1.3, Flowise GET /api/v1/upsert-history returns the entire server-wide upsert history instead of being scoped to the requesting user, tenant, or workspace. The response can exceed 100MB and includes sensitive configuration data, including Vector Store settings such as Qdrant Server URL and collection name. The observed behavior indicates missing or insufficient authorization checks, workspace/project/tenant isolation, and pagination or limits, exposing integration parameters and infrastructure details that may enable further targeted attacks. This issue is fixed in version 3.1.3.
Which versions are affected by CVE-2026-70473?
2 open source packages ship an affected version, including flowise. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | All versions | 3.1.3 |
flowise npm | All versions | 3.1.3 |
Products include Flowiseai Flowise.
How do I fix CVE-2026-70473?
Upgrade flowise to 3.1.3 or later.
Is CVE-2026-70473 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-70473 exists.
Other vulnerabilities in Flowiseai Flowise
- CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
- CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters
- CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write
- CVE-2025-59528 Flowise has Remote Code Execution vulnerability
- CVE-2026-52098 Code injection in n/a
Sources
Also known as GHSA-fr6g-7cq8-fg82.