AUGUST 15, 2026
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Case File

CVE-2026-73287

MEDIUM · CVSS 5.4 EPSS 0.21% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-12 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

RustFS versions prior to 1.0.0-beta.12 are vulnerable to an authorization bypass in the FTPS MKD command, enabling authenticated users who lack permission to create S3 buckets to do so. This flaw could lead to unauthorized resource creation, potentially impacting storage management and security. Organizations using affected versions should prioritize updating to the fixed version to mitigate the risk of unauthorized bucket creation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-73287
Severity
MEDIUM
CVSS
5.4
EPSS
0.21%

Original NVD Description

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.