What is CVE-2026-73290?

CVE-2026-73290 is a medium-severity vulnerability in Rustfs, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-08-12.

How severe is CVE-2026-73290?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Rustfs

CVE-2026-73290

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 r…

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Rustfs — versions < 1.0.0-beta.12

Weakness classification (CWE)

CWE-863 — Incorrect 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-2026-73290?: CVE-2026-73290 is a medium-severity vulnerability in Rustfs, classified under Incorrect Authorization. CVSS score: 5.3/10. Published 2026-08-12.
How severe is CVE-2026-73290?: Medium severity. CVSS v3 base score is 5.3 out of 10.