{"schema_version":"1.7.5","id":"CVE-2021-3524","published":"2021-05-17T17:15:08.773Z","modified":"2026-07-08T05:57:10.772856605Z","related":["SUSE-SU-2021:1834-1","SUSE-SU-2021:1835-1","openSUSE-SU-2021:0833-1","openSUSE-SU-2021:1834-1","openSUSE-SU-2024:10676-1"],"details":"A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. In addition, the prior bug fix for CVE-2020-10753 did not account for the use of \\r as a header separator, thus a new flaw has been created.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ceph/ceph","events":[{"introduced":"0"},{"fixed":"5ef401921d7a88aea18ec7558f7f9374ebd8f5a6"}],"database_specific":{"cpe":"cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"14.2.21"}],"source":"CPE_RANGE"}}],"versions":["v14.2.20","v14.2.19","v14.2.18","v14.2.17","v14.2.13","v14.2.16","v14.2.15","v14.2.14","v14.2.12","v14.2.11","v14.2.10","v14.2.8","v14.2.5","v14.2.7","v14.2.6","v14.2.3","v14.2.2","v14.2.1","v14.2.0","v14.0.0","v13.0.0","v11.0.0","v0.19","v0.18","v0.9","v0.7.3","v0.7.2","v0.7.1","v0.6","v0.5","v0.4","v0.2","v0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3524.json"}}],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX5ZHI5L7FOHXOSEV3TYBAL66DMLJ7V5/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPCJN2YDZCBMF4FOJXSTAADKFGEQEO7O/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZRUNDH2TJRZRWL3DCH2PQ6KROWTPQ7AJ/"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/08/msg00013.html"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1951674"}],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"},{"cpes":["cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"32"},{"last_affected":"32"},{"introduced":"33"},{"last_affected":"33"},{"introduced":"34"},{"last_affected":"34"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"},{"cpes":["cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"4.0"},{"last_affected":"4.0"}],"source":"CPE_STRING","vendor_product":"redhat:ceph_storage"}]},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"}]}