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Vulnerability record · CVE-2025-63387 · published 18 December 2025

CVE-2025-63387: Langgenius dify improper access control vulnerability

LLanggenius · Dify

Dify v1.9.1 is vulnerable to Insecure Permissions. An unauthenticated attacker can directly send HTTP GET requests to the /console/api/system-features endpoint without any authentication credentials or session tokens. The endpoint fails to implement proper authorization checks, allowing anonymous access to sensitive system configuration data. NOTE: The maintainer states that the endpoint is unauthenticated by design and serves as a bootstrap mechanism required for the dashboard initialization. They also state that the description inaccurately classifies the returned data as sensitive system configuration, stating that the data is non-sensitive and required for client-side rendering. No PII, credentials, or secrets are exposed.

7.5 CVSS 3.1 High EPSS 30% · top 1.9% CWE-284 · Improper access control
7.5CVSS 3.1 base score
30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

Dify v1.9.1 is vulnerable to Insecure Permissions. An unauthenticated attacker can directly send HTTP GET requests to the /console/api/system-features endpoint without any authentication credentials or session tokens. The endpoint fails to implement proper authorization checks, allowing anonymous access to sensitive system configuration data. NOTE: The maintainer states that the endpoint is unauthenticated by design and serves as a bootstrap mechanism required for the dashboard initialization. They also state that the description inaccurately classifies the returned data as sensitive system configuration, stating that the data is non-sensitive and required for client-side rendering. No PII, credentials, or secrets are exposed.

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

Affected products

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

References

LinkTags
https://gist.github.com/Cristliu/cddc0cbbf354de51106ab63a11be94af Third Party Advisory
https://gist.github.com/Cristliu/dfc5f3a31dc6d7fff2754867e5c649a5
https://github.com/langgenius/dify/discussions Issue Tracking
https://github.com/langgenius/dify/issues/31368#issuecomment-3783712203
https://github.com/langgenius/dify/pull/31392
https://github.com/langgenius/dify/pull/31417

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Source: NIST National Vulnerability Database (record CVE-2025-63387), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.