What’s Vulnerable › Vulnerabilities

CVE-2025-59422: Dify Has Broken Access Control on Log Message Endpoint Allows Reading of Chats of Others

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-09-25 · updated 2026-10-11
• Weakness: CWE-284

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.

Affected products

• langgenius dify: 1.8.1

References

• https://github.com/langgenius/dify/commit/b2d8a7eaf1693841411934e2056042845ab4f354
• https://github.com/langgenius/dify/security/advisories/GHSA-jg5j-c9pq-w894
• https://github.com/langgenius/dify/security/advisories/GHSA-jg5j-c9pq-w894

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