CVE-2026-73265

RustFS: Version-specific object reads authorize the non-version action

6.5 Medium

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 without historical-version permission to disclose known historical object content. This issue is fixed in version 1.0.0-beta.11.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.41%Up 0.1 points since Aug 13, 2026

What each source reports

CVE List Score used 6.5

RustFS: Version-specific object reads authorize the non-version action

Record: CVE-2026-73265
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862, CWE-863
Updated: 2026-11-02

EUVDEUVD-2026-57227 6.5

Record: EUVD-2026-57227
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

NVD 6.5

Record: CVE-2026-73265
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862, CWE-863
Updated: 2026-11-02

OSV 6.5

RustFS: Version-specific object reads authorize the non-version action

Record: CVE-2026-73265
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862, CWE-863
Updated: 2026-11-02

Affected products

rustfs

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-73265 is a medium vulnerability (CVSS 6.5) in Rustfs, published August 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 36th percentile. No source names a fixed version.