Vulnerability · Published Aug 10, 2026 · Assigned by VulnCheck

CVE-2026-71962Flowise 2.2.4 - 3.1.4 Missing Authorization via openai-assistants-file/download

High 7.5

In plain English

A high-severity missing authorization in Flowise from FlowiseAI. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.7%top 47.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
FlowiseAI	Flowise	2.2.4 – through 3.1.4

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

Researcher Disclosure technical-description, exploit
Sunset Announcement vendor-advisory
https://www.vulncheck.com/advisories/flowise-missing-authorization-via-openai-assistants-file-download third-party-advisory