Disclosure summary
MinIO contains a security feature bypass vulnerability that allows an attacker to use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket` to conduct privilege escalation. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access.
CISA remediation guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Original records & references
PUBLISHED 2023-09-19T00:00:00-04:00
MODIFIED 2023-09-19T00:00:00-04:00
INGESTED 2026-10-06T11:42:58-04:00