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MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads

🗓️ 14 Apr 2026 00:04:45Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 50 Views

MinIO allows unauthenticated writes via trailer uploads due to missing signature verification.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40344
22 Apr 202600:49
–attackerkb
bdu_fstec
BDU FSTEC
MinIO Privilege Escalation
25 Sep 202600:00
–bdu_fstec
cgr
Chainguard
CVE-2026-40344 vulnerabilities
5 Jun 202613:33
–cgr
circl
Circl
CVE-2026-40344
22 Apr 202603:09
–circl
cnnvd
CNNVD
MinIO authorization issue vulnerabilities
22 Apr 202600:00
–cnnvd
cve
CVE
CVE-2026-40344
22 Apr 202600:49
–cve
cvelist
Cvelist
CVE-2026-40344 MinIO has an Unauthenticated Object Write via Missing Signature Verification in Unsigned-Trailer Uploads
22 Apr 202600:49
–cvelist
euvd
EUVD
EUVD-2026-24579
22 Apr 202600:49
–euvd
mend
Mend
CVE-2026-40344
22 Apr 202600:49
–mend
nvd
NVD
CVE-2026-40344
22 Apr 202601:16
–nvd
Rows per page
Vulners
Node
miniominioRange0.0.0-20230506025312-76913a9fd5c6–0.0.0-20260212201848-7aac2a2c5b7cgo

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05 May 2026 15:43Current
7.9High risk
Vulners AI Score7.9
CVSS 3.18.2
CVSS 48.8
EPSS0.00715
SSVC
50