CVE-2025-59952 HIGH

CVE-2025-59952: minio-java Client XML Tag is Vulnerable to Value Substitution

Vendor Minio
Product minio-java
Weakness CWE-20 · Input validation
Published September 29, 2025
Last update January 23, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

Description

MinIO Java SDK is a Simple Storage Service (aka S3) client to perform bucket and object operations to any Amazon S3 compatible object storage service. In minio-java versions prior to 8.6.0, XML tag values containing references to system properties or environment variables were automatically substituted with their actual values during processing. This unintended behavior could lead to the exposure of sensitive information, including credentials, file paths, or system configuration details, if such references were present in XML content from untrusted sources. This is fixed in version 8.6.0.

Key dates

Disclosure timeline

September 29, 2025 CVE published
January 23, 2026 Record updated