What is the CVSS score of CVE-2026-28288?

CVE-2026-28288 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of AI / ML are affected by CVE-2026-28288?

Organizations using Dify should be aware of moderate risk from CVE-2026-28288 rated CVSS 5.3. Exploitation could compromise the security of affected deployments.

Is there a public PoC exploit available for CVE-2026-28288?

Yes, a public proof-of-concept exploit is available for CVE-2026-28288. Prioritise patching immediately. EPSS: 0.0%.

AI / ML CVE-2026-28288

MEDIUM

Observable Response Discrepancy (CWE-204)

2026-02-27 security-advisories@github.com

Information Disclosure AI / ML Dify

5.3

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

PoC Detected

Mar 09, 2026 - 20:23 vuln.today

Public exploit code

CVE Published

Feb 27, 2026 - 21:16 nvd

MEDIUM 5.3

DescriptionNVD

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.

AnalysisAI

Dify versions prior to 1.9.0 leak information through inconsistent API responses that distinguish between registered and non-registered email addresses, enabling attackers to enumerate valid user accounts. Public exploit code exists for this vulnerability, and affected users should upgrade to version 1.9.0 or later to remediate the information disclosure risk.

RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-28288 vulnerability details – vuln.today

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AI / ML CVE-2026-28288

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

RemediationAI

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External POC / Exploit Code