CVE-2026-28288

5.5 mediumEPSS 0.7%

Medium (5.5) in dify dify. EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

5.5 medium

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

CVSS 3.1

5.3 medium

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-204
Published: 2026-02-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

dify:dify

References

https://github.com/langgenius/dify/issues/24323
https://github.com/langgenius/dify/security/advisories/GHSA-9qpf-wcv3-w3qx

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