CVE-2021-3524

MEDIUM
6.5
CVSS Score
Published: May 17, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:05 AM UTC
4 products affected across 4 vendorsDebian LinuxFedoraCeph Storage

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 14.2.2114.2.21
Affected range stops below 14.2.21, so it looks safe — our inference, not a vendor statement

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-74

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