Medium 5.3Published Aug 12, 2026

CVE-2026-73290RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket fallback

Updated under an hour ago (2026-10-19 06:50 UTC)

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Exploited in the last 30 days

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 /<bucket>?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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-863
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Aug 12, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

rustfs rustfs rustfs:rustfs (from the name)	before 1.0.0-beta.12	CNA record

References

https://github.com/rustfs/rustfs/security/advisories/GHSA-x298-9x87-fvjqx-refsource-confirm
https://github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efbx-refsource-misc
https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.