{"id":"CVE-2026-94368","revision":"4c406cfbc0444723b4b4a206c4702232","records":[{"revision":"4c406cfbc0444723b4b4a206c4702232","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-94368","aliases":[],"title":"Noobaa-core: noobaa-core: presigned put url escalation to copyobject via unsigned x-amz-copy-source header","description":"A flaw was found in the signature verification logic of noobaa-core, the core component of the NooBaa Multicloud Object Gateway. The issue occurs when the service processes S3 presigned URLs using Signature Version 4 (SigV4). Due to improper validation, the service fails to reject requests containing unsigned x-amz- headers, instead simply dropping them from the signature calculation. This allows an attacker who possesses a valid presigned PUT URL to add an unsigned x-amz-copy-source header, effectively converting a simple upload into a CopyObject operation. This can lead to unauthorized access and copying of any data the original signer is permitted to reach across the entire storage system.","state":0,"publishedAt":"2026-09-21T11:45:12.776+00:00","modifiedAt":"2026-09-25T06:45:02.664+00:00","affected":[{"ecosystem":"https://access.redhat.com/downloads/content/package-browser/","name":"odf4/mcg-core-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Openshift Data Foundation 4\",\n                    \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\",\n                    \"packageName\": \"odf4/mcg-core-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"cpes\": [\n                        \"cpe:/a:redhat:openshift_data_foundation:4\"\n                    ]\n                }"},{"ecosystem":"https://access.redhat.com/downloads/content/package-browser/","name":"rhceph-dev/odf4-mcg-core-rhel9","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Red Hat\",\n                    \"product\": \"Red Hat Openshift Data Foundation 4\",\n                    \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\",\n                    \"packageName\": \"rhceph-dev/odf4-mcg-core-rhel9\",\n                    \"defaultStatus\": \"affected\",\n                    \"cpes\": [\n                        \"cpe:/a:redhat:openshift_data_foundation:4\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","score":7.1,"severity":"HIGH"}],"references":["https://access.redhat.com/security/cve/CVE-2026-94368","https://bugzilla.redhat.com/show_bug.cgi?id=2537364"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-94368","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-94368","identifiers":["CVE-2026-94368"]},"retained":false,"historicalAffected":[]}],"coverage":[]}