RustFS: FTPS MKD bypasses IAM CreateBucket authorization

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73287
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 15:18:32 UTC
Updated2026-08-12 15:18:32 UTC
DescriptionRustFS 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Problem Types: CWE-862 | CWE-862 CWE-862: Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rustfs Rustfs affected < 1.0.0-beta.12 Not specified

References

ReferenceSourceLinkTags
github.com/rustfs/rustfs/releases/tag/1.0.0-beta.12 [email protected] github.com
github.com/rustfs/rustfs/commit/92f83bfe155d8a3b9cdd903086e5b28d52339efb [email protected] github.com
github.com/rustfs/rustfs/security/advisories/GHSA-g3vq-vv42-f647 [email protected] github.com
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