CVE-2026-28288 MEDIUM

CVE-2026-28288: Dify has a user enumeration issue

Vendor Langgenius
Product dify
Weakness CWE-204
Published February 27, 2026
Last update February 27, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 27, 2026 CVE published
February 27, 2026 Record updated