What is CVE-2026-73287?

CVE-2026-73287 is a medium-severity vulnerability in Rustfs, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-08-12.

How severe is CVE-2026-73287?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Rustfs

CVE-2026-73287

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 S3Actio…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

Affected products

Rustfs — versions < 1.0.0-beta.12

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-73287?: CVE-2026-73287 is a medium-severity vulnerability in Rustfs, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-08-12.
How severe is CVE-2026-73287?: Medium severity. CVSS v3 base score is 5.4 out of 10.