CVE Explorer

CVE-2026-34204

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5799a08f38946b909b688e54a1f39d7b1e258342741542d972fa457e5efd3df9

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"minio","vendor":"minio","versions":[{"status":"affected","version":"< RELEASE.2026-03-26T21-24-40Z"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:8d3e985b29992ce394d8bb2667b1cd232b0606bc74b76723fd8433af71a8dd5b · sha256:a0df5f4c3dc68bb5… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":7.1,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:8d3e985b29992ce394d8bb2667b1cd232b0606bc74b76723fd8433af71a8dd5b · sha256:a0df5f4c3dc68bb5… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:8d3e985b29992ce394d8bb2667b1cd232b0606bc74b76723fd8433af71a8dd5b · sha256:a0df5f4c3dc68bb5… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/minio/minio/security/advisories/GHSA-3rh2-v3gr-35p9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/minio/minio/security/advisories/GHSA-3rh2-v3gr-35p9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8d3e985b29992ce394d8bb2667b1cd232b0606bc74b76723fd8433af71a8dd5b · sha256:a0df5f4c3dc68bb5… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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