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CVE-2026-55874

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
seaweedfs / seaweedfsaffected < 4.34

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.