Unrated severityNVD Advisory· Published Jul 8, 2026· Updated Jul 8, 2026
SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets
CVE-2026-55873
Description
SeaweedFS is a distributed storage system. In versions 4.08 through 4.33, requests signed with SigV4 service s3tables are routed to the S3Tables management API where authorization collapses account-less S3 identities into the shared admin account and fails open, allowing an authenticated low-privileged S3 user to enumerate administrator-owned table bucket names and ARNs. This issue is fixed in version 4.34.
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/seaweedfs/seaweedfs/commit/b13463880c1fa62e255c058a9228b63cc95b4b36mitrex_refsource_MISC
- github.com/seaweedfs/seaweedfs/pull/9961mitrex_refsource_MISC
- github.com/seaweedfs/seaweedfs/releases/tag/4.34mitrex_refsource_MISC
- github.com/seaweedfs/seaweedfs/security/advisories/GHSA-hgpf-8634-g44cmitrex_refsource_CONFIRM
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