CVE-2021-3524
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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 17 days later
· 17 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
Affected products
ceph
- affected ceph 14.2.21
References (6)
- https://bugzilla.redhat.com/show_bug.cgi?id=1951674 (opens in a new tab)x_transferred
- FEDORA-2021-ec414c5e18 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2021-6e540b85b9 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2021-1bf13db941 (opens in a new tab)vendor-advisoryx_transferred
- [debian-lts-announce] 20210810 [SECURITY] [DLA 2735-1] ceph security update (opens in a new tab)mailing-listx_transferred
- [debian-lts-announce] 20231023 [SECURITY] [DLA 3629-1] ceph security update (opens in a new tab)mailing-listx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-3524)Record last updated .