CVE-2025-59422 Dify Has Broken Access Control on Log Message Endpoint Allows Reading of Chats of Others
Attackers can read other users' chat messages in the same workspace by accessing an unprotected API endpoint, compromising data confidentiality.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59422?
CVE-2025-59422 is a medium-severity missing authorization vulnerability in langgenius dify, published on 25 Sep 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Dify is an open-source LLM app development platform. In version 1.8.1, a broken access control vulnerability on the /console/api/apps/<APP_ID>chat-messages?conversation_id=<CONVERSATION_ID>&limit=10 endpoint allows users in the same workspace to read chat messages of other users. A regular user is able to read the query data and the filename of the admins and probably other users chats, if they know the conversation_id. This impacts the confidentiality of chats. This issue has been patched in version 1.9.0.
Weakness: CWE-284
Which versions are affected by CVE-2025-59422?
It affects 1 product.
Products include Langgenius Dify.
How do I fix CVE-2025-59422?
No fix has been published for CVE-2025-59422 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-2025-59422 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-59422 exists.
Other vulnerabilities in langgenius dify
Sources
Also known as GHSA-jg5j-c9pq-w894.