CVE-2026-28288
published 2026-02-27CVE-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…
PriorityP338medium5.3CVSS 3.1
AVNACLPRNUINSUCLINAN
EXPLOIT
EPSS
0.64%
45.9th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| dify | dify | < 1.9.0 | 1.9.0 |
| langgenius | dify | < 1.9.0 | 1.9.0 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
nvdv4.05.5MEDIUMCVSS: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:X/V:X/RE:X/U:X
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No advisories linked to this vulnerability.
No detection rules found.
Nuclei
Dify User Enumeration via Observable Response Discrepancy
nuclei·CVSS 5.5
CVE-2026-28288 [MEDIUM] Dify User Enumeration via Observable Response Discrepancy
Dify User Enumeration via Observable Response Discrepancy
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.
Template:
id: CVE-2026-28288
info:
name: Dify User Enumeration via Observable Response Discrepancy
author: DhiyaneshDk
severity: medium
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.
impact: |
Attackers can enumerate registered email addresses, potentially aiding further target
Wiz
CVE-2026-28288 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2026-28288 [MEDIUM] CVE-2026-28288 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-28288 :
Dify vulnerability analysis and mitigation
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
## 5.5
Score
Published February 27, 2026
Severity MEDIUM
CNA Score 5.5
Affected Technologies
Dify
Has Public Exploit Yes
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 63.1
Exploitation Probability (EPSS) 0.4
Affected packages and libraries
cpe:2.3:a:dify:dify
Sources
Linux Severity MEDIUM Has Fix Added at: Mar 02, 2026
Windows Severity MEDIUM Has Fix Added at: Mar 02, 2026
Linux Sev
Wiz
CVE-2026-21866 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2026-21866 [MEDIUM] CVE-2026-21866 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-21866 :
Dify vulnerability analysis and mitigation
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 vulnerability is fixed in 1.11.2.
Source : NVD
## 5.1
Score
Published March 3, 2026
Severity MEDIUM
CNA Score 5.1
Affected Technologies
Dify
Has Public Exploit Yes
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 9.2
Exploitation Probability (EPSS) N/A
Affected packages and libraries
cpe:2.3:a:dify:dify
Sources
Linux Severity MEDIUM Has Fix Added at
Wiz
CVE-2026-26023 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2026-26023 [MEDIUM] CVE-2026-26023 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-26023 :
Dify vulnerability analysis and mitigation
Dify is an open-source LLM app development platform. Prior to 1.13.0, a cross site scripting vulnerability has been found in the web application chat frontend when using echarts. User or llm inputs containing echarts containing a specific javascript payload will be executed. This vulnerability is fixed in 1.13.0.
Source : NVD
## 5.3
Score
Published February 11, 2026
Severity MEDIUM
CNA Score 5.3
Affected Technologies
Dify
Has Public Exploit Yes
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 13.8
Exploitation Probability (EPSS) N/A
Affected packages and libraries
cpe:2.3:a:dify:dify
Sources
Linux Severity MEDIUM Has Fix Added at: Feb 24, 20
Wiz
CVE-2025-67732 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2025-67732 [MEDIUM] CVE-2025-67732 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2025-67732 :
Dify vulnerability analysis and mitigation
Dify 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-administrator users to view and reuse it. This can lead to unauthorized access to third-party services, potentially consuming limited quotas. Version 1.11.0 fixes the issue.
Source : NVD
## 8.4
Score
Published January 5, 2026
Severity HIGH
CNA Score 8.4
Affected Technologies
Dify
Has Public Exploit Yes
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 15.5
Exploitation Probability (EPSS) 0.1
Affected packages and libraries
cpe:2.3:a:dify:dify
Sources
Linux Severity MEDIUM Has Fix Added at: Feb 24, 202
2026-02-27
Published