CVE-2026-71962 Flowise 2.2.4 - 3.1.4 Missing Authorization via openai-assistants-file/download
Unauthenticated attackers can access private files from any chatflow by exploiting a missing authorization check in the file download endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71962?
CVE-2026-71962 is a high-severity missing authorization vulnerability in Flowiseai Flowise, published on 10 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Flowise versions 2.2.4 through 3.1.4 contain a missing authorization vulnerability in the POST /api/v1/openai-assistants-file/download endpoint that allows unauthenticated attackers to access private files by exploiting the endpoint's inclusion in the global authentication whitelist, which bypasses all session and API key verification. Attackers can supply valid chatflowId, chatId, and fileName identifiers to retrieve files from any chatflow on the instance, including private chatflows belonging to other workspaces or organizations.
Weakness: CWE-862
Which versions are affected by CVE-2026-71962?
It affects 1 product.
Products include Flowiseai Flowise.
How do I fix CVE-2026-71962?
No fix has been published for CVE-2026-71962 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-2026-71962 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-71962 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-mf39-7j64-g95c.