CVE-2026-110212

Stonewuu ai-fusion-video through 1.2.0 contains a path traversal vulnerability that allows authenticated users to write uploaded files outside the media directory via the subDir parameter of POST /api/storage/upload. Attackers can supply parent-directory sequences that LocalStorageStrategy.storeBytes never normalizes, creating directories and writing attacker-controlled files with chosen extensions anywhere the service account can write.

• https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/controller/storage/FileUploadController.java#L72-L99
• https://github.com/Stonewuu/ai-fusion-video/blob/v1.2.0/ai-fusion-video/src/main/java/com/stonewu/fusion/service/storage/strategy/LocalStorageStrategy.java#L77-L92
• https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ai-fusion-video-broken-access-control-and-upload-path-traversal
• https://www.vulncheck.com/advisories/ai-fusion-video-through-1.2.0-path-traversal-in-media-upload-subdir-parameter
• https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/ai-fusion-video-broken-access-control-and-upload-path-traversal