VULNERABILITY INTELLIGENCE

CVE-2021-3524

CVSS score6.5 MEDIUM
EPSS probability1.60%
CISA KEVNot currently listed
Published2021-05-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Description

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.

Weakness classification

  • secalert@redhat.com: CWE-20
  • nvd@nist.gov: CWE-74

Primary references