CVE-2026-28288 Dify has a user enumeration issue
Attackers can enumerate registered email addresses by analyzing API response differences, exposing user data in Dify.
- 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-2026-28288?
CVE-2026-28288 is a medium-severity vulnerability in langgenius dify, published on 27 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Dify is an open-source LLM app development platform. Prior to 1.9.0, responses from the Dify API to existing and non-existent accounts differ, allowing an attacker to enumerate email addresses registered with Dify. Version 1.9.0 fixes the issue.
Weakness: CWE-204
Which versions are affected by CVE-2026-28288?
It affects 1 product.
Products include Dify Dify.
How do I fix CVE-2026-28288?
No fix has been published for CVE-2026-28288 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28288 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-28288 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in langgenius dify
- CVE-2026-41947 Dify < 1.14.2 Authorization Bypass via Trace Configuration Endpoints
- CVE-2026-41948 Dify v1.14.1 Path Traversal via Plugin Daemon Internal API Access
- CVE-2025-0185 Pandas Query Injection in langgenius/dify
- CVE-2026-61461 Dify < 1.16.0-rc1 SQL Injection via MyScale Vector Store search_by_full_text
- CVE-2025-67732 Dify Vulnerable to Plaintext API Key Exposure via Model Provider Configuration Endpoint
Sources
Also known as GHSA-9qpf-wcv3-w3qx.