6.5

CVE-2023-2728: Bypassing enforce mountable secrets policy imposed by the ServiceAccount admission plugin

Modified
AliasesUBUNTU-CVE-2023-2728DEBIAN-CVE-2023-2728CGA-4v5x-5f9r-xj49
Published 03-07-2023Last modified 13-02-2025

Vulnerability summary

CVE-2023-2728 is a medium (CVSS 6.5) Improper Input Validation vulnerability in kubernetes. EPSS estimates a 2.16% chance of exploitation in the next 30 days, higher than 82.2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
2.16%
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 11 · Related 16
OPENSUSE-SU-2024:13003-1OPENSUSE-SU-2025:15424-1RHSA-2023:5008RHSA-2023:5009SUSE-SU-2023:2541-1SUSE-SU-2023:2542-1

Timeline

  1. 03-07-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

Users may be able to launch containers that bypass the mountable secrets policy enforced by the ServiceAccount admission plugin when using ephemeral containers. The policy ensures pods running with a service account may only reference secrets specified in the service account’s secrets field. Kubernetes clusters are only affected if the ServiceAccount admission plugin and the `kubernetes.io/enforce-mountable-secrets` annotation are used together with ephemeral containers.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

2.16%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.16% 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: network-reachable, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard4 products
  • aws-efs-csi-driverAll versions (No fix recorded)
  • kubeflow-pipelinesAll versions (No fix recorded)
  • nodetaintAll versions (No fix recorded)
  • spark-operatorAll versions (No fix recorded)
Wolfi4 products
  • aws-efs-csi-driverAll versions (No fix recorded)
  • kubeflow-pipelinesAll versions (No fix recorded)
  • nodetaintAll versions (No fix recorded)
  • spark-operatorAll versions (No fix recorded)
Alpine1 product
  • k3s< 1.27.3.1-r0
Debian1 product
  • kubernetes< 1.20.5+really1.20.2-1
K8s.io1 product
  • kubernetes≥ 1.26.0, < 1.26.6 | ≥ 1.25.0, < 1.25.11 | < 1.24.15 | ≥ 1.27.0, < 1.27.3
Kubernetes1 product
  • kubernetes≥ v1.24.14, ≤ <= | v1.25.0 - v1.25.10 | v1.26.0 - v1.26.5 | v1.27.0 - v1.27.2 | ≤ 1.24.14 | ≥ 1.25.0, ≤ 1.25.10 | ≥ 1.26.0, ≤ 1.26.5 | ≥ 1.27.0, ≤ 1.27.2
Opensuse1 product
  • kubernetes1.24&distro=openSUSE Tumbleweed< 1.24.15-2.1
Ubuntu1 product
  • kubernetesAll versions (No fix recorded)

8 vendors · 14 products

References

20 links
Show all 20 references