CVE-2026-28288— Dify has a user enumeration issue
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-28288
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Dify has a user enumeration issue
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
响应差异性信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
dify 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dify是LangGenius开源的一个开源的 LLM 应用程序开发平台。 dify 1.9.0之前版本存在安全漏洞，该漏洞源于API响应差异，可能导致枚举已注册的电子邮件地址。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| langgenius | dify | < 1.9.0 | - |
II. Public POCs for CVE-2026-28288
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | 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. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-28288.yaml | POC Details |
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-28288
Please Login to view more intelligence information
- User enumeration · Advisory · langgenius/dify · GitHubx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2026-28288
IV. Related Vulnerabilities
Same product: dify
- CVE-2026-41950
Dify < 1.14.0 Authorization Bypass via File UUID - CVE-2026-42138
Dify Vulnerable to Stored XSS via SVG-file upload - CVE-2026-34082
Dify has IDOR in deleting someone else's chat conversation - CVE-2026-6619
langgenius dify ImagePreview image-preview.tsx openInNewTab - CVE-2026-6618
langgenius dify ApiBasedToolSchemaParser parser.py parse_ope
Same vendor: langgenius
- CVE-2026-41950
Dify < 1.14.0 Authorization Bypass via File UUID - CVE-2026-42138
Dify Vulnerable to Stored XSS via SVG-file upload - CVE-2026-34082
Dify has IDOR in deleting someone else's chat conversation - CVE-2026-6619
langgenius dify ImagePreview image-preview.tsx openInNewTab - CVE-2026-6618
langgenius dify ApiBasedToolSchemaParser parser.py parse_ope
Same weakness: CWE-204
- CVE-2026-20195
Cisco Identity Services Engine Observable Response Discrepan - CVE-2026-24468
OpenAEV Vulnerable to Username/Email Enumeration Through Dif - CVE-2026-34264
Information Disclosure vulnerability in SAP Human Capital Ma - CVE-2026-4113
SonicWALL SMA1000 安全漏洞 - CVE-2026-39851
Saleor has a user enumeration vulnerability due to different
V. Comments for CVE-2026-28288
No comments yet