CVE-2020-27839: redhat ceph Insufficiently Protected Credentials
Vulnerability summary
CVE-2020-27839 is a medium (CVSS 5.4) Insufficiently Protected Credentials vulnerability in redhat ceph. EPSS estimates a 2.45% chance of exploitation in the next 30 days, higher than 84.3% of scored vulnerabilities.
Not severe (CVSS 5.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 6Timeline
- 26-05-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in ceph-dashboard. The JSON Web Token (JWT) used for user authentication is stored by the frontend application in the browser’s localStorage which is potentially vulnerable to attackers via XSS attacks. The highest threat from this vulnerability is to data confidentiality and integrity.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
2.45%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.45% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- ceph< 14.2.18-1
Redhat1 product
- ceph< 14.2.17 | ≥ 15.2.0, < 15.2.9
Ubuntu1 product
- ceph< 15.2.12-0ubuntu0.20.04.1
3 vendors · 3 products
