CVE-2026-73290
MediumCVSS 5.3Summary
In RustFS prior to 1.0.0-beta.12, an anonymous ListObjectVersions request 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. This allows a bucket that permits anonymous listing to continue exposing version listings after an operator enables public-access control.
Risk Assessment
Risk of disclosing object version metadata that should be inaccessible to anonymous users. This could compromise data confidentiality and security policies.
Recommendation
Update RustFS to version 1.0.0-beta.12 or later, which includes the fix. Ensure that public access controls are properly enforced.
Original NVD description (English source)
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.