Improper access control in Dify - CVE-2026-34082

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Main Vulnerability Database Vulnerabilities #VU139804

Improper access control in Dify - CVE-2026-34082

Published: July 27, 2026


Vulnerability identifier: #VU139804
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-34082
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: LangGenius
Affected software:
Dify

Detailed vulnerability description

The vulnerability allows a remote user to delete another user's chat conversation.

The vulnerability exists due to improper access control in the DELETE /console/api/installed-apps//conversations/ endpoint when handling crafted deletion requests for a conversation identifier. A remote user can send a specially crafted request with a known conversationId to delete another user's chat conversation.

Exploitation requires authentication, and any role is sufficient. Knowledge of the target conversation GUID is required.


How to mitigate CVE-2026-34082

Install security update from vendor's website.

Sources