CVE-2026-55874

Published: Jul 8, 2026Modified: Jul 8, 2026Deferred

7.7

Vector

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

Exploitability: 3.1 / Impact: 4.0

Source: security-advisories@github.com (Secondary)

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.

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (4)

https://github.com/seaweedfs/seaweedfs/commit/b44cf51fe931bd75aa4d37ae766bea90d7f85ccd

Source: security-advisories@github.com

https://github.com/seaweedfs/seaweedfs/pull/9929

Source: security-advisories@github.com

https://github.com/seaweedfs/seaweedfs/releases/tag/4.34

Source: security-advisories@github.com

https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4

Source: security-advisories@github.com

Timeline

No history available yet.