Security Advisory
CVE-2026-55874
7.7
HIGH
Vulnerability Description
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 copy. This issue is fixed in version 4.34.
Published Date
July 8, 2026
Official Source
NIST NVD Advisory