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CVE-2026-73265— RustFS: Version-specific object reads authorize the non-version action

Quick assessment

Affected
rustfs rustfs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RustFS是RustFS组织开源的一款网络存储文件系统。 RustFS 1.0.0-beta.11之前版本存在授权问题漏洞，该漏洞源于在GetObject、CopyObject sources和UploadPartCopy sources中使用s3:GetObject而非s3:GetObjectVersion授权显式versionId读取，可能导致无历史版本权限的用户披露已知历史对象内容。

CVSS 6.5 · Medium EPSS 0.41% · P34

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
rustfs rustfs < 1.0.0-beta.11 affected
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I. Basic Information for CVE-2026-73265

Vulnerability Information
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Vulnerability Title
RustFS: Version-specific object reads authorize the non-version action
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
RustFS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RustFS是RustFS组织开源的一款网络存储文件系统。 RustFS 1.0.0-beta.11之前版本存在授权问题漏洞，该漏洞源于在GetObject、CopyObject sources和UploadPartCopy sources中使用s3:GetObject而非s3:GetObjectVersion授权显式versionId读取，可能导致无历史版本权限的用户披露已知历史对象内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rustfs rustfs < 1.0.0-beta.11 -

II. Public POCs for CVE-2026-73265

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III. Intelligence Information for CVE-2026-73265

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Patches & Fixes for CVE-2026-73265 (2)

Vendor Advisories for CVE-2026-73265 (1)

Vendor Pages for CVE-2026-73265 (1)

Same Patch Batch · rustfs · 2026-08-12 · 8 CVEs total

CVE-2026-73284 8.8 HIGH RustFS: AddServiceAccount Handler Allows Creation of Root-Parent Service Accounts
CVE-2026-73286 8.1 HIGH RustF: Request headers can populate server-derived IAM condition keys, letting a caller sa
CVE-2026-73289 8.1 HIGH RustFS: ForAllValues/ForAnyValue negated string conditions are transposed, inverting IAM a
CVE-2026-73285 7.5 HIGH RustFS: OPA policy plugin omits ExistingObjectTag conditions, allowing tag-based authoriza
CVE-2026-73288 6.1 MEDIUM RustFS: Object Lock (WORM) protections are treated as absent when bucket metadata cannot b
CVE-2026-73287 5.4 MEDIUM RustFS: FTPS MKD bypasses IAM CreateBucket authorization
CVE-2026-73290 5.3 MEDIUM RustFS: Anonymous ListObjectVersions bypasses RestrictPublicBuckets through the ListBucket

IV. Related Vulnerabilities

Same product: rustfs
Same vendor: rustfs
Same weakness: CWE-862

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