CVE-2025-62506 — Incorrect Authorization in Minio

CWE-863 — Incorrect AuthorizationCWE-269 — Improper Privilege Management6 documents3 sources
Severity
8.1HIGHNVD
EPSS
0.0%
top 94.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
MinioGithub.com Minio MinioRustfs
Timeline
PublishedOct 16
Latest updateJan 8

Description

MinIO is a high-performance object storage system. In all versions prior to RELEASE.2025-10-15T17-29-55Z, a privilege escalation vulnerability allows service accounts and STS (Security Token Service) accounts with restricted session policies to bypass their inline policy restrictions when performing operations on their own account, specifically when creating new service accounts for the same user. The vulnerability exists in the IAM policy validation logic where the code incorrectly relied on th…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NExploitability: 2.8 | Impact: 5.2

Affected Packages3 packages

▶CVEListV5minio/minio< RELEASE.2025-10-15T17-29-55Z
▶Gogithub.com/minio_minio< 0.0.0-20251015170045-c1a49490c78e
▶crates.iorustfs/rustfs1.0.0-alpha.13 — 1.0.0-alpha.79

🔴Vulnerability Details

5
GHSA
RustFS has IAM deny_only Short-Circuit that Allows Privilege Escalation via Service Account Minting↗2026-01-08
▶
OSV
RustFS has IAM deny_only Short-Circuit that Allows Privilege Escalation via Service Account Minting↗2026-01-08
▶
OSV
MinIO is Vulnerable to Privilege Escalation via Session Policy Bypass in Service Accounts and STS in github.com/minio/minio↗2025-10-30
▶
GHSA
MinIO is Vulnerable to Privilege Escalation via Session Policy Bypass in Service Accounts and STS↗2025-10-16
▶
OSV
MinIO is Vulnerable to Privilege Escalation via Session Policy Bypass in Service Accounts and STS↗2025-10-16
▶