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Medium

RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket fallback

Type: advisorySources: OSV

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, an anonymous ListObjectVersions request in rustfs/src/storage/access.rs that lacks a direct bucket-policy grant falls back to an s3:ListBucket check and returns before the policy_allowed path applies deny_anonymous_table_data_plane_if_needed and RestrictPublicBuckets, so a bucket that permits anonymous listing can continue exposing version listings after an operator enables the public-access control. The bypass affects GET /?versions= and can disclose object version metadata even though equivalent GetObject requests are denied. This issue is fixed in version 1.0.0-beta.12.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-73290
Confirmed fixed CVEs
Not specified
Updated in this feed
2 Nov 2026, 15:33 UTC · Revision 1

Source evidence

RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket fallback

core-osv · Original source

Published 12 Aug 2026, 14:46 UTC

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, an anonymous ListObjectVersions request in rustfs/src/storage/access.rs that lacks a direct bucket-policy grant falls back to an s3:ListBucket check and returns before the policy_allowed path applies deny_anonymous_table_data_plane_if_needed and RestrictPublicBuckets, so a bucket that permits anonymous listing can continue exposing version listings after an operator enables the public-access control. The bypass affects GET /?versions= and can disclose object version metadata even though equivalent GetObject requests are denied. This issue is fixed in version 1.0.0-beta.12.

osv:CVE-2026-73290
Complete source record
{
  "id": "f41ae8e1d29065ca7ef5894642c514d218cd77773c58d574cbef6013ad7f277b",
  "url": "https://osv.dev/vulnerability/CVE-2026-73290",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket fallback",
    "summary": "RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, an anonymous ListObjectVersions request in rustfs/src/storage/access.rs that lacks a direct bucket-policy grant falls back to an s3:ListBucket check and returns before the policy_allowed path applies deny_anonymous_table_data_plane_if_needed and RestrictPublicBuckets, so a bucket that permits anonymous listing can continue exposing version listings after an operator enables the public-access control. The bypass affects GET /?versions= and can disclose object version metadata even though equivalent GetObject requests are denied. This issue is fixed in version 1.0.0-beta.12.",
    "evidence": "osv:CVE-2026-73290",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-73290",
      "aliases": [
        "CVE-2026-73290",
        "GHSA-x298-9x87-fvjq"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/rustfs/rustfs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2e5cef513fb31e25940f1c77e208f28b302561bb"
                },
                {
                  "fixed": "92f83bfe155d8a3b9cdd903086e5b28d52339efb"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.0.0-beta.12"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "92f83bfe155d8a3b9cdd903086e5b28d52339efb"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2e5cef513fb31e25940f1c77e208f28b302561bb"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "1.0.0-beta.12"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.0.0-beta.11-preview.1",
            "1.0.0-beta.11",
            "1.0.0-beta.10-preview.5",
            "1.0.0-beta.10",
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73290.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:20.553623935Z",
      "provider": "osv",
      "references": [
        "https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73290.json",
        "https://github.com/rustfs/rustfs/security/advisories/GHSA-x298-9x87-fvjq",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-73290",
        "https://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-863"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73290.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-73290",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 486583,
  "published_at": "2026-08-12T14:46:20.042+00:00"
}