Auth bypass in Rustfs
CVE-2026-73265
RustFS is a distributed object storage system built in Rust. RustFS authorizes explicit versionId reads in GetObject, CopyObject sources, and UploadPartCopy sources with s3:GetObject instead of s3:GetObjectVersion, allowing principals with…
Vulnerability class: Broken Access Control
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Rustfs — versions < 1.0.0-beta.11
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-73265?
- CVE-2026-73265 is a medium-severity vulnerability in Rustfs, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-08-12.
- How severe is CVE-2026-73265?
- Medium severity. CVSS v3 base score is 6.5 out of 10.