CVE-2026-73287: Rustfs

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

RustFS is a distributed object storage system built in Rust. Prior to 1.0.0-beta.12, RustFS handles FTPS MKD in FtpsDriver::mkd in crates/protocols/src/ftps/driver.rs by calling storage.create_bucket without authorize_operation for S3Action::CreateBucket, allowing authenticated FTPS users denied s3:CreateBucket to create buckets. This issue is fixed in version 1.0.0-beta.12.

Affected products

• Rustfs Rustfs: before 1.0.0-beta.12 (fixed in 1.0.0-beta.12)

Published 2026-08-12. Last modified 2026-09-09.