High 7.1Published Oct 5, 2026

CVE-2026-105761Dify: IDOR in AppMCPServer PUT Endpoint Allows Modification of Other Apps' MCP Servers

Updated under an hour ago (2026-10-19 06:30 UTC)

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EPSS puts the chance of exploitation in the next 30 days at 0.25%, higher than 15% of scored CVEs.

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Exploited in the last 30 days

Dify is an open-source LLM app development platform. Prior to 1.16.0, the PUT /console/api/apps/<app_id>/server endpoint in api/controllers/console/app/mcp_server.py used AppMCPServerController.put() to retrieve an AppMCPServer by the client-supplied server ID without verifying that the server belonged to the requested application and tenant. An authenticated workspace member could therefore change another application's MCP server status and parameters, potentially redirecting data or disabling the service. This issue is fixed in version 1.16.0.

CVSS: 7.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.25% (percentile 15)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

langgenius dify langgenius:dify (from the name)	before 1.16.0	CNA record

References

https://github.com/langgenius/dify/security/advisories/GHSA-ccrj-frp2-c945x-refsource-confirm
https://github.com/langgenius/dify/pull/38177x-refsource-misc
https://github.com/langgenius/dify/commit/62cb5b586504b730731e28e743c038b72950058ex-refsource-misc
https://github.com/langgenius/dify/releases/tag/1.16.0x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.