GHSA-hgpf-8634-g44c

Source

https://github.com/advisories/GHSA-hgpf-8634-g44c

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-hgpf-8634-g44c/GHSA-hgpf-8634-g44c.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-hgpf-8634-g44c

Aliases

Downstream

MINI-3fc5-7g54-5fc3

MINI-hw99-52g3-56qp

Published

2026-08-28T22:16:43Z

Modified

2026-09-02T19:55:26Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator

Summary

SeaweedFS: Improper authorization in the S3Tables / Iceberg REST management API lets a low-privileged S3 user enumerate administrator-owned table buckets

Details

Summary

SeaweedFS routes requests signed with SigV4 service s3tables to the S3Tables management API. Authorization on that path collapsed account-less S3 identities into the shared admin account and failed open, so a user holding only ordinary S3 Read credentials — and no S3Tables-specific permission — could invoke S3Tables management operations such as GET /buckets and enumerate administrator-owned table bucket inventory (names and ARNs). The same handler backs the Iceberg REST catalog, which was affected by the same flaw.

Impact

An authenticated low-privileged S3 user can cross the boundary between ordinary S3 object access and S3Tables management. Confirmed impact is disclosure of administrator-owned table bucket inventory (bucket names and ARNs); in shared or multi-tenant deployments this can reveal tenant naming and operational structure.

Affected versions

SeaweedFS >= 4.08, < 4.34 (the S3Tables management API was introduced in 4.08).

Patched versions

Fixed in 4.34 (#9961). Administrator status is now decided by the ACTION_ADMIN capability rather than by a collapsed admin account id, S3Tables authorization no longer defaults to allow, and the tautological ListTableBuckets gate was removed. Related hardening of the same root cause landed in #9962, #9963, and #9971.

Workaround

No configuration workaround — upgrade to 4.34 or later.

Credit

Reported by TA-MU-TA.

Database specific

{
    "cwe_ids": [
        "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-28T22:16:43Z",
    "nvd_published_at": "2026-07-08T15:16:30Z",
    "severity": "MODERATE"
}

References

Affected packages

Go / github.com/seaweedfs/seaweedfs

Package

Name: github.com/seaweedfs/seaweedfs; View open source insights on deps.dev
Purl: pkg:golang/github.com/seaweedfs/seaweedfs

Affected ranges

Type: SEMVER
Events: Introduced

0.0.0-20260128085517-09bb90e8dc16

Fixed

0.0.0-20260614205536-b13463880c1f

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-hgpf-8634-g44c/GHSA-hgpf-8634-g44c.json"