How severe is CVE-2025-59952?

CVE-2025-59952 has a CVSS 4.0 base score of 8.7, rated high severity.

Is CVE-2025-59952 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-59952?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-59952 have an EU (EUVD) identifier?

Yes. CVE-2025-59952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31590.

When was CVE-2025-59952 published?

CVE-2025-59952 was published on 2025-09-30 and last updated on 2026-06-17.

CVE-2025-59952

CVE-2025-59952 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 4.0 base score 8.7)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31590
Weakness: CWE-20
Published: 2025-09-30
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-59952?: 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.
How severe is CVE-2025-59952?: CVE-2025-59952 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2025-59952 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-59952?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-59952 have an EU (EUVD) identifier?: Yes. CVE-2025-59952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31590.
When was CVE-2025-59952 published?: CVE-2025-59952 was published on 2025-09-30 and last updated on 2026-06-17.

References

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