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MinIO is Vulnerable to SSE Metadata Injection via Replication Headers

🗓️ 27 Mar 2026 22:26:05Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 33 Views

Authenticated users with s3:PutObject can inject SSE metadata via replication headers, making objects permanently unreadable.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-34204
31 Mar 202619:30
–attackerkb
alpinelinux
AlpineLinux
CVE-2026-34204
31 Mar 202619:30
–alpinelinux
bdu_fstec
BDU FSTEC
MinIO extractMetadataFromMime DoS
5 Aug 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-34204 vulnerabilities
5 May 202619:17
–cgr
circl
Circl
CVE-2026-34204
31 Mar 202621:19
–circl
cnnvd
CNNVD
MinIO authorization issue vulnerabilities
31 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-34204
31 Mar 202619:30
–cve
cvelist
Cvelist
CVE-2026-34204 MinIO is Vulnerable to SSE Metadata Injection via Replication Headers
31 Mar 202619:30
–cvelist
mend
Mend
CVE-2026-34204
31 Mar 202619:30
–mend
nvd
NVD
CVE-2026-34204
31 Mar 202620:16
–nvd
Rows per page
Vulners
Node
miniominioRange0.0.0-20240328174456-468a9fae83e9–0.0.0-20260212201848-7aac2a2c5b7cgo

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08 Apr 2026 11:55Current
7.2High risk
Vulners AI Score7.2
CVSS 3.17.1
CVSS 47.1
EPSS0.00208
SSVC
33