A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21. When processing a GET Request for a swift URL that ends with two slashes it can cause the rgw to crash, resulting in a denial of service. The greatest threat to the system is of availability.
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"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3531.json"