The vulnerabilities of the S3 API Gateway and Iceberg REST Catalog Gateway of the distributed file system SeaweedFS allow a perpetrator to gain unauthorized access for reading and writing data.

The vulnerability of the S3 API Gateway and Iceberg REST Catalog Gateway components of the distributed file system SeaweedFS is related to incorrect path name restrictions for catalogs. Exploiting this vulnerability could allow an attacker to gain unauthorized read and write access to data...

CVE-2026-55874: Improper Limitation of a Pathname to a Restricted Directory

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-2026-54917: Improper Limitation of a Pathname to a Restricted Directory

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...