Cross-site Scripting (XSS) Affecting ceph package, versions <14.2.21-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.7% (75th percentile)

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  • Snyk IDSNYK-ECHOLATEST-CEPH-19012688
  • published20 Aug 2026
  • disclosed27 May 2021

Introduced: 27 May 2021

CVE-2021-3509  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Echo:latest ceph to version 14.2.21-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ceph package and not the ceph package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw was found in Red Hat Ceph Storage 4, in the Dashboard component. In response to CVE-2020-27839, the JWT token was moved from localStorage to an httpOnly cookie. However, token cookies are used in the body of the HTTP response for the documentation, which again makes it available to XSS.The greatest threat to the system is for confidentiality, integrity, and availability.

CVSS Base Scores

version 3.1