Medium severity · published Aug 12, 2026
CVE-2026-73265
RustFS: Version-specific object reads authorize the non-version action
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
rustfs · rustfs
< 1.0.0-beta.11 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73265
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73265
github.com
https://github.com/rustfs/rustfs/commit/81665617029e5e437ecf9dc70d8dcbbbf80cdbd1
github.com
https://github.com/rustfs/rustfs/pull/5142
github.com
https://github.com/rustfs/rustfs/releases/tag/1.0.0-beta.11
github.com
https://github.com/rustfs/rustfs/security/advisories/GHSA-3ppv-fx5m-m749
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