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CVE-2021-25741

HIGH
Published 2021-09-20T17:05:21.097904Z
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CVSS Score

V3.1
8.8
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.278
probability
of exploitation in the wild

There is a 27.8% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.962
Higher than 96.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Kubernetes

Kubernetes

Affected Versions:

unspecified unspecified unspecified unspecified
kubernetes

kubernetes

Affected Versions:

0 1.20.0 1.21.0 1.22.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

Files or Directories Accessible to External Parties in kubernetes

GHSA-f5f7-6478-qm6p

Advisory Details

A security issue was discovered in Kubernetes where a user may be able to create a container with subpath volume mounts to access files & directories outside of the volume, including on the host filesystem.

Affected Packages

Go k8s.io/kubernetes
ECOSYSTEM: ≥0 <1.19.15
Go k8s.io/kubernetes
ECOSYSTEM: ≥1.20.0 <1.20.11
Go k8s.io/kubernetes
ECOSYSTEM: ≥1.21.0 <1.21.5
Go k8s.io/kubernetes
ECOSYSTEM: ≥1.22.0 <1.22.2

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

WEB https://github.com/bottlerocket-os/bottlerocket/security/advisories/GHSA-f5f7-6478-qm6p
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-25741
WEB https://github.com/kubernetes/kubernetes/issues/104980
PACKAGE https://github.com/kubernetes/kubernetes
WEB https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s
WEB https://security.netapp.com/advisory/ntap-20211008-0006

Advisory provided by GitHub Security Advisory Database. Published: November 1, 2021, Modified: November 1, 2021

References

https://groups.google.com/g/kubernetes-security-announce/c/nyfdhK24H7s
https://github.com/kubernetes/kubernetes/issues/104980
https://security.netapp.com/advisory/ntap-20211008-0006/
Published: 2021-09-20T17:05:21.097904Z
Last Modified: 2024-09-16T23:26:06.351Z
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