SeaweedFS <= 4.29 - Path Traversal File Write

SeaweedFS versions through 4.29 build the S3 API and Iceberg REST catalog routers with mux.NewRouter.SkipCleantrue, which disables URL path cleaning. A .. segment in the request path therefore survives routing and reaches the handlers unnormalised, so a request such as PUT...

CVE-2026-54917-SeaweedFS-Cross-Bucket-Traversal

CVE-2026-54917 — SeaweedFS S3 gateway cross-bucket path traversal Proof-of-concept and technical write-up for CVE-2026-54917 , a path-traversal in the SeaweedFS S3 API gateway that lets a caller reach objects in any bucket , regardless of what its credentials are authorized for...

SUSE CVE-2026-55874

SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side...

SUSE CVE-2026-54917

SeaweedFS is a distributed storage system for object storage S3, file systems, and Iceberg tables. Prior to 4.30, the S3 API gateway and the Iceberg REST catalog gateway construct their routers with mux.NewRouter.SkipCleantrue. With path cleaning disabled, a .. segment inside the URL survives...

GO-2026-6327 SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read in github.com/seaweedfs/seaweedfs

SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read in github.com/seaweedfs/seaweedfs...

EUVD-2026-42285

SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read...

SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read

Summary The SeaweedFS S3 API gateway did not reject .. path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy. The request URL path was hardened against traversal in 4.30 CVE-2026-54917, but the copy-source header was only checked for emptiness, so a .. segment in the...

GHSA-56WQ-X3WV-3FF4 SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read

Summary The SeaweedFS S3 API gateway did not reject .. path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy. The request URL path was hardened against traversal in 4.30 CVE-2026-54917, but the copy-source header was only checked for emptiness, so a .. segment in the...

GO-2026-6221 SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access in github.com/seaweedfs/seaweedfs

SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access in github.com/seaweedfs/seaweedfs...

SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access

Summary The S3 API gateway and the Iceberg REST catalog gateway construct their routers with mux.NewRouter.SkipCleantrue. With path cleaning disabled, a .. segment inside the URL survives routing, so a request such as: GET /bucket-A/../evil-bucket/key is matched as bucket=bucket-A,...

GHSA-W62W-66V9-VVGV SeaweedFS: Path traversal in the S3 and Iceberg REST gateways allows cross-bucket access

Summary The S3 API gateway and the Iceberg REST catalog gateway construct their routers with mux.NewRouter.SkipCleantrue. With path cleaning disabled, a .. segment inside the URL survives routing, so a request such as: GET /bucket-A/../evil-bucket/key is matched as bucket=bucket-A,...

Exploit for Path Traversal in Seaweedfs

CVE-2026-54917 — SeaweedFS S3 gateway cross-bucket path traver...

BIT-SEAWEEDFS-2026-55874 SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read

SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side...

EUVD-2026-43577

Cockpit CMS contains a path traversal vulnerability in the Bucket file storage API /system/buckets/api. The api method in modules/System/Controller/Buckets.php sanitizes the bucket name with pregreplace'/^a-zA-Z0-9-\./','', $bucket, which permits '..' and '../' sequences. The sanitized value is...

PT-2026-58928

SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side...

CVE-2026-57856

Cockpit CMS contains a path traversal vulnerability in the Bucket file storage API /system/buckets/api. The api method in modules/System/Controller/Buckets.php sanitizes the bucket name with pregreplace'/^a-zA-Z0-9-\./','', $bucket, which permits '..' and '../' sequences. The sanitized value is...

CVE-2026-57856 Cockpit CMS Path Traversal via Bucket Name in Bucket File Storage API

Cockpit CMS contains a path traversal vulnerability in the Bucket file storage API /system/buckets/api. The api method in modules/System/Controller/Buckets.php sanitizes the bucket name with pregreplace'/^a-zA-Z0-9-\./','', $bucket, which permits '..' and '../' sequences. The sanitized value is...

PT-2026-57916

Cockpit CMS contains a path traversal vulnerability in the Bucket file storage API /system/buckets/api. The api method in modules/System/Controller/Buckets.php sanitizes the bucket name with preg replace'/^a-zA-Z0-9- ./','', $bucket, which permits '..' and '../' sequences. The sanitized value is...

CVE-2026-55874

SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side...

CVE-2026-55874

SeaweedFS is a distributed storage system. Prior to 4.34, the S3 API gateway does not reject dot-dot path segments in the X-Amz-Copy-Source header used by CopyObject and UploadPartCopy, allowing an authenticated identity scoped to one bucket to read objects from other buckets through server-side...