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Vulnerability record · CVE-2026-28288 · published 27 February 2026

CVE-2026-28288: Dify vulnerability

Dify · Dify

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.

5.5 CVSS 4.0 Medium EPSS 0.71% · top 48.3% CWE-204 · CWE-204
5.5CVSS 4.0 base score
0.71%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/langgenius/dify/issues/24323 Issue Tracking
https://github.com/langgenius/dify/security/advisories/GHSA-9qpf-wcv3-w3qx ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2026-41947Dify insecure direct object reference vulnerabilityDify before version 1.14.2 contains an authorization bypass vulnerability that allows authenticated editor users to set and enable trace configuratio…EPSS 0.61%9.3CVE-2026-41948Dify relative path traversal vulnerabilityDify version 1.14.1 and prior contain a path traversal vulnerability that allows authenticated users to manipulate requests forwarded to the Plugin D…EPSS 1.9%8.8CVE-2025-0185Dify code injection vulnerabilityA vulnerability in the Dify Tools' Vanna module of the langgenius/dify repository allows for a Pandas Query Injection in the latest version. The vuln…EPSS 1.1%8.7CVE-2026-61461Dify sql injection vulnerabilityDify before 1.16.0-rc1 contains a SQL injection vulnerability in the MyScale vector store backend that allows attackers to execute arbitrary SQL by s…EPSS 0.50%8.4CVE-2025-67732Dify information exposure vulnerabilityDify is an open-source LLM app development platform. Prior to version 1.11.0, the API key is exposed in plaintext to the frontend, allowing non-admin…EPSS 0.35%8.2CVE-2026-41949Dify insecure direct object reference vulnerabilityDify before version 1.14.2 contains an authorization bypass vulnerability in the file preview endpoint that allows any authenticated user to read up …EPSS 0.57%7.5CVE-2024-11822Dify server-side request forgery (ssrf) vulnerabilitylanggenius/dify version 0.9.1 contains a Server-Side Request Forgery (SSRF) vulnerability. The vulnerability exists due to improper handling of the a…EPSS 0.60%5.3CVE-2026-34082Dify improper access control vulnerabilityDify is an open-source LLM app development platform. Prior to 1.13.1, the method `DELETE /console/api/installed-apps/<appId>/conversations/<conversat…EPSS 0.27%

Source: NIST National Vulnerability Database (record CVE-2026-28288), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.