PT-2026-137746
CVE-2026-122267
·
Published
2026-11-05
·
Updated
2026-11-05
Description by
CVSS 4.0
8.8
HighMetricsAV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions
MinIO versions prior to RELEASE.2026-09-22T19-25-18Z
Description
Signature V4 verification accepts unsigned
x-amz-* headers. This flaw allows a presigned PUT URL to be escalated into a cross-bucket read.Recommendations
Update to version RELEASE.2026-09-22T19-25-18Z or later.
Exploitability
Exploit
Fix
Impacts
Researchers
Vendors
Affected products
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