abp-next-admin 10.4.0 through 10.7.0 contains a cross-tenant authorization bypass in the BlobManagement download-by-name endpoint, letting authenticated users read other tenants' files. Attackers supply a victim tenantId in the request path, causing DownloadByNameAsync to switch tenant context and return blobs stored by that tenant.
https://hackmd.io/@hieuPenguinnn/abp-next-admin-blob-download-by-name-cross-tenant-idor
https://github.com/colinin/abp-next-admin/pull/1633
https://github.com/colinin/abp-next-admin/issues/1628
https://github.com/colinin/abp-next-admin/commit/fc5e6d5a8a11a65e06fe001fe4a55e414956fc0c
https://github.com/colinin/abp-next-admin/commit/3ea383093d51b18984652fc9b2d3dcc779a372ee
Published: 2026-10-30
Updated: 2026-10-30
Base Score: 6.8
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: Medium
Base Score: 7.1
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Severity: High