CVE-2020-10753

Name: CVE-2020-10753
Creator: NVD / NIST
Published: 2020-06-26T15:15:11.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.63%

Last modified Jun 17, 2026

CVE-2020-10753 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. EPSS estimates a 1.63% chance of exploitation in the next 30 days.

Description

A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). 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. Ceph versions 3.x and 4.x are vulnerable to this issue.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

EPSS Probability

1.63%

73.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Ceph Storage	3.0
Redhat	Ceph Storage	4.0
Redhat	Openstack	15
Fedoraproject	Fedora	32
Opensuse	Leap	15.1
Linuxfoundation	Ceph	< 14.2.21
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	18.04

References

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00062.htmlMailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10753Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00013.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFU7LXEL2UZE565FJBTY7UGH2O7ZUBVS/
https://security.gentoo.org/glsa/202105-39Third Party Advisory
https://usn.ubuntu.com/4528-1/Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00062.htmlMailing List, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10753Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00013.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFU7LXEL2UZE565FJBTY7UGH2O7ZUBVS/
https://security.gentoo.org/glsa/202105-39Third Party Advisory
https://usn.ubuntu.com/4528-1/Third Party Advisory

Timeline

Published: Jun 26, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10753?

How severe is CVE-2020-10753?

CVE-2020-10753 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.63% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10753?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10753?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST