---
id: CVE-2025-63388
title: >-
  A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists
  in Dify v1.9.1 in the /console/api/system-features endpoint
summary: >-
  A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists
  in Dify v1.9.1 in the /console/api/system-features endpoint. The endpoint
  implements an overly permissive CORS policy that reflects arbitrary Origin
  headers and…
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-346
vendor: langgenius
product: dify
affected:
  - dify = 1.9.1
published: '2025-12-18'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T11:10:00.203'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-63388'
references:
  - url: 'https://gist.github.com/Cristliu/5ded6d03e41d7d66ecb1b568bae3ff6c'
    label: cve@mitre.org
  - url: 'https://gist.github.com/Cristliu/c2bc7d05abd89db8eb542a453a528d77'
    label: cve@mitre.org
  - url: 'https://github.com/langgenius/dify/discussions'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00222
epssPercentile: 0.11711
ingestedAt: '2026-10-13T11:23:51.134Z'
---

## Overview

A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/system-features endpoint. The endpoint implements an overly permissive CORS policy that reflects arbitrary Origin headers and sets Access-Control-Allow-Credentials: true, allowing any external domain to make authenticated cross-origin requests. NOTE: the Supplier disputes this, providing the rationale of "sending requests with credentials does not provide any additional access compared to unauthenticated requests."

## Affected

- `dify = 1.9.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.