PT-2026-33858

Dify is an open-source LLM app development platform. Prior to 1.13.1, the method DELETE /console/api/installed-apps//conversations/ has poor authorization checking and allows any Dify-authenticated user to delete someone else's chat history. Version 1.13.1 patches the issue...

PT-2026-33733

A flaw has been found in langgenius dify up to 1.13.3. This issue affects the function parse openai plugin json to tool bundle of the file api/core/tools/utils/parser.py of the component ApiBasedToolSchemaParser. Executing a manipulation of the argument url can lead to server-side request forgery...

CVE-2026-6618: Server-Side Request Forgery (SSRF)

A flaw has been found in langgenius dify up to 1.13.3. This issue affects the function parseopenaipluginjsontotoolbundle of the file api/core/tools/utils/parser.py of the component ApiBasedToolSchemaParser. Executing a manipulation of the argument url can lead to server-side request forgery. The...

CVE-2026-34082: Incorrect Authorization

Dify is an open-source LLM app development platform. Prior to 1.13.1, the method DELETE /console/api/installed-apps/ /conversations/ has poor authorization checking and allows any Dify-authenticated user to delete someone else's chat history. Version 1.13.1 patches the issue...

CVE-2026-6619: Improper Neutralization of Input During Web Page Generation

A vulnerability has been found in langgenius dify up to 1.13.3. Impacted is the function openInNewTab of the file web/app/components/base/image-uploader/image-preview.tsx of the component ImagePreview. The manipulation of the argument filename leads to cross site scripting. The attack may be...

CVE-2026-6617: Server-Side Request Forgery (SSRF)

A vulnerability was detected in langgenius dify up to 0.6.9. This vulnerability affects the function getapitoolproviderremoteschema of the file api/services/tools/apitoolsmanageservice.py of the component ApiToolManageService. Performing a manipulation of the argument url results in server-side...

CVE-2026-21866

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-21866

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-21866 Dify - Stored XSS in chat

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-21866

Dify (open-source LLM app platform) is affected by a stored XSS in Mermaid rendering prior to version 1.11.2 due to securityLevel: loose; this may allow execution of unsafe content in chats. The issue is fixed in 1.11.2. CVSS v4 base score 5.1 (Medium); attack vector NETWORK, low attack complexit...

CVE-2026-21866 Dify - Stored XSS in chat

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

EUVD-2026-9325

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-21866

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-21866 Dify - Stored XSS in chat

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-21866

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

PT-2026-22832

Name of the Vulnerable Software and Affected Versions Dify versions prior to 1.11.2 Description Dify, an open-source LLM app development platform, contains a stored cross-site scripting XSS issue when rendering Mermaid diagrams within chats. The issue stems from Dify’s default Mermaid configurati...

Dify Cross-Site Scripting Vulnerability

dify is an open-source LLM application development platform developed by LangGenius. Versions of dify prior to 1.11.2 had a cross-site scripting vulnerability. This vulnerability stemmed from the relaxed security settings when Mermaid charts were rendered in chat messages, potentially leading to...

CVE-2026-21866: Improper Neutralization of Input During Web Page Generation

Dify is an open-source LLM app development platform. Prior to 1.11.2, Dify is vulnerable to a stored XSS issue when rendering Mermaid diagrams within chats. This occurs because Dify’s default Mermaid configuration uses securityLevel: loose, which allows potentially unsafe content to execute. This...

CVE-2026-28288

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...

CVE-2026-28288

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...