CVE-2026-41950
mediumpriority · track · 0EPSS 0.003 · 28 %ileEUUSEPSS · scored 2026-10-28
Dify before version 1.14.0 contains an authorization bypass vulnerability that allows authenticated users to read the full contents of files uploaded by other users within the same tenant by supplying an arbitrary file UUID in the files array of a chat-messages request. Attackers can exploit insufficient permission verification in the chat-messages endpoints to access files without ownership validation, bypassing workspace separation and signed URL protections to retrieve sensitive file contents through workflow processing.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.3–6.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://github.com/langgenius/dify/releases/tag/1.14.0cnnvd
- https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01dcnnvd
- https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuidcnnvd
- https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-appscnnvd
- https://github.com/langgenius/dify/releases/tag/1.14.0enisa_euvd
- https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01denisa_euvd
- https://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuidenisa_euvd
- https://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-appsenisa_euvd
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