CVE-2025-63388

critical

A Cross-Origin Resource Sharing (CORS) misconfiguration vulnerability exists in Dify v1.9.1 in the /console/api/system-features endpoint.

Vendor / product: Langgenius — dify

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."

CVSS

9.1

9.1 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2025-12-18 16:15

Modified: 2026-10-13 11:10

NVD status: Modified

Last synced 2 days ago

Verified against the source API 2026-10-27 07:06 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

langgenius / dify 1.9.1

Weakness classification (CWE)

NVD-CWE-noinfo CWE-346

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://gist.github.com/Cristliu/5ded6d03e41d7d66ecb1b568bae3ff6c cve@mitre.org
https://gist.github.com/Cristliu/c2bc7d05abd89db8eb542a453a528d77 cve@mitre.org
https://github.com/langgenius/dify/discussions cve@mitre.org

Data sources

NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗

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