CVE-2026-34204
MinIO is Vulnerable to SSE Metadata Injection via Replication Headers
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
MinIO is a high-performance object storage system. Prior to version RELEASE.2026-03-26T21-24-40Z, a flaw in extractMetadataFromMime() allows any authenticated user with s3:PutObject permission to inject internal server-side encryption metadata into objects by sending crafted X-Minio-Replication-* headers on a normal PutObject request. This issue has been patched in version RELEASE.2026-03-26T21-24-40Z.
| CWE | CWE-287 |
| Vendor | minio |
| Product | minio |
| Published | Mar 31, 2026 |
| Last Updated | Apr 1, 2026 |
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Affected Versions
minio / minio
< RELEASE.2026-03-26T21-24-40Z