CVE-2026-55874

HighCVSS 7.7/10Last modified Jul 8, 2026

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.

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-22

Affected software

No affected versions have been published.

Timeline

Published: Jul 8, 2026
Last modified: Jul 8, 2026
NVD status: Deferred

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