CVE-2026-41950

原文の説明

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.

影響を受けるソフトウェア

• Dify.ai < 1.14.0 修正バージョン: 1.14.0 リポジトリ・パッケージ一致

詳細

公開日

2026-05-06

最終更新

2026-11-08

CVSS ベクター

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CWE

CWE-639

参考資料

• cve.org/CVE-2026-41950
• nvd.nist.gov/vuln/detail/CVE-2026-41950
• www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-dat...
• github.com/langgenius/dify/releases/tag/1.14.0
• huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01d
• www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuid