BIT-seaweedfs-2026-55873: SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets
SeaweedFS versions 4.08 through 4.33 contain an improper authorization vulnerability in the S3Tables / Iceberg REST management API. Authenticated low-privileged S3 users can exploit this flaw to enumerate administrator-owned table bucket names and ARNs due to authorization collapsing account-less S3 identities into a shared admin account and failing open. This vulnerability is fixed in version 4.34.
AI Analysis
Technical Summary
SeaweedFS, a distributed storage system, has an authorization flaw in versions 4.08 through 4.33 within the S3Tables management API. Requests signed with SigV4 for the s3tables service are routed to this API where the authorization mechanism incorrectly treats account-less S3 identities as the shared admin account and fails open. This allows authenticated low-privileged S3 users to enumerate table bucket names and ARNs owned by administrators. The issue is resolved in SeaweedFS version 4.34.
Potential Impact
An authenticated low-privileged S3 user can enumerate administrator-owned table bucket names and ARNs, potentially exposing sensitive resource identifiers. There is no indication of further privilege escalation or data modification from the provided data.
Mitigation Recommendations
Upgrade SeaweedFS to version 4.34 or later, where this authorization issue is fixed. No other mitigation or temporary workaround is indicated in the available data.
BIT-seaweedfs-2026-55873: SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets
Description
SeaweedFS versions 4.08 through 4.33 contain an improper authorization vulnerability in the S3Tables / Iceberg REST management API. Authenticated low-privileged S3 users can exploit this flaw to enumerate administrator-owned table bucket names and ARNs due to authorization collapsing account-less S3 identities into a shared admin account and failing open. This vulnerability is fixed in version 4.34.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SeaweedFS, a distributed storage system, has an authorization flaw in versions 4.08 through 4.33 within the S3Tables management API. Requests signed with SigV4 for the s3tables service are routed to this API where the authorization mechanism incorrectly treats account-less S3 identities as the shared admin account and fails open. This allows authenticated low-privileged S3 users to enumerate table bucket names and ARNs owned by administrators. The issue is resolved in SeaweedFS version 4.34.
Potential Impact
An authenticated low-privileged S3 user can enumerate administrator-owned table bucket names and ARNs, potentially exposing sensitive resource identifiers. There is no indication of further privilege escalation or data modification from the provided data.
Mitigation Recommendations
Upgrade SeaweedFS to version 4.34 or later, where this authorization issue is fixed. No other mitigation or temporary workaround is indicated in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- BIT-seaweedfs-2026-55873
- Osv Schema Version
- 1.6.2
- Aliases
- ["CVE-2026-55873"]
- Ecosystems
- ["Bitnami"]
- Database Specific Severity
- Medium
- Cvss Version
- null
Threat ID: 6a561c4868715ace4365a178
Added to database: 07/14/2026, 11:23:52 UTC
Last enriched: 07/14/2026, 11:33:11 UTC
Last updated: 08/24/2026, 22:52:12 UTC
Views: 127
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