CVE-2026-22042

HIGH

8.8

Description

RustFS is a distributed object storage system built in Rust. Prior to version 1.0.0-alpha.79, he `ImportIam` admin API validates permissions using `ExportIAMAction` instead of `ImportIAMAction`, allowing a principal with export-only IAM permissions to perform import operations. Since importing IAM data performs privileged write actions (creating/updating users, groups, policies, and service accounts), this can lead to unauthorized IAM modification and privilege escalation. Version 1.0.0-alpha.79 fixes the issue.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published1/8/2026

Last Modified1/15/2026

Sourcenvd

Honeypot Sightings0

Affected Products

rustfs:rustfs

Weaknesses (CWE)

CWE-285CWE-863CWE-863

References

https://github.com/rustfs/rustfs/security/advisories/GHSA-vcwh-pff9-64cc(security-advisories@github.com)

https://github.com/rustfs/rustfs/security/advisories/GHSA-vcwh-pff9-64cc(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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