5.5

CVE-2020-8566: Ceph RBD adminSecrets exposed in logs when loglevel >= 4

Modified
AliasesUBUNTU-CVE-2020-8566DEBIAN-CVE-2020-8566GHSA-5x96-j797-5qqw
Published 07-12-2020Last modified 16-09-2024

Vulnerability summary

CVE-2020-8566 is a medium (CVSS 5.5) vulnerability in kubernetes. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 44.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
OPENSUSE-SU-2025:15424-1RHSA-2020:5634SUSE-SU-2020:3760-1

Timeline

  1. 07-12-2020
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager's logs during provisioning of Ceph RBD persistent claims. This affects < v1.19.3, < v1.18.10, < v1.17.13.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.53%

Chance of exploitation in the next 30 days

Percentile

45%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.53% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • kubernetes< 1.19.3-1
Github.com/kubernetes1 product
  • kubernetes< 1.17.13 | ≥ 1.18.0, < 1.18.10 | ≥ 1.19.0, < 1.19.3
K8s.io1 product
  • kubernetes≥ 1.19.0, < 1.19.3
Kubernetes1 product
  • kubernetes< 1.19.3 | < 1.18.10 | < 1.17.13 | ≥ 1.17.0, < 1.17.13 | ≥ 1.18.0, < 1.18.10 | ≥ 1.19.0, < 1.19.3
Ubuntu1 product
  • kubernetesAll versions (No fix recorded)

5 vendors · 5 products

References

14 links
Show all 14 references