Dify < 1.14.0 Authorization Bypass via File UUID
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 6epss 0.3%
exploitation probability
0.3%top 73% of all CVEs
observed exploitation
nono source reports it
2 public exploit(s)
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:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
langgenius · difypublic PoCs found — 2
cve_referencehuntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01dunverifiedcve_referencewww.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-appsunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/langgenius/dify/releases/tag/1.14.0https://huntr.com/bounties/181136ec-d957-4b75-8ea7-6fa7b8abd01dhttps://www.vulncheck.com/advisories/dify-authorization-bypass-via-file-uuidhttps://www.zafran.io/resources/difytap-zafran-discovers-how-attackers-can-silently-wiretap-ai-data-across-tenants-on-a-platform-powering-1m-apps