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CVE-2026-55874
7.7 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): None (N)
- Availability (A): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): None (N)
Activity log
- Created suggestion
SeaweedFS: Path traversal in the S3 gateway X-Amz-Copy-Source header allows cross-bucket object read
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.
References
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https://github.com/seaweedfs/seaweedfs/security/advisories/GHSA-56wq-x3wv-3ff4 x_refsource_CONFIRM
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https://github.com/seaweedfs/seaweedfs/pull/9929 x_refsource_MISC
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https://github.com/seaweedfs/seaweedfs/releases/tag/4.34 x_refsource_MISC
Affected products
seaweedfs
- ==< 4.34
Package maintainers
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@cmacrae Calum MacRae <hi@cmacr.ae>
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@wozeparrot Woze Parrot <wozeparrot@gmail.com>
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@azahi Azat Bahawi <azat@bahawi.net>