CVE-2026-39360

MEDIUM

4.3

Descricao

RustFS is a distributed object storage system built in Rust. Prior to alpha.90, RustFS contains a missing authorization check in the multipart copy path (UploadPartCopy). A low-privileged user who cannot read objects from a victim bucket can still exfiltrate victim objects by copying them into an attacker-controlled multipart upload and completing the upload. This breaks tenant isolation in multi-user / multi-tenant deployments. This vulnerability is fixed in alpha.90.

Detalhes CVE

Pontuacao CVSS v3.14.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado4/7/2026

Ultima modificacao4/10/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

rustfs:rustfs

Fraquezas (CWE)

CWE-862

Referencias

https://github.com/rustfs/rustfs/security/advisories/GHSA-mx42-j6wv-px98(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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