CVE-2021-25741CWE-20

Symlink Exchange Can Allow Host Filesystem Access

High · published September 20, 2021

CVSS v3.1
8.8
EPSS
8%
Percentile
94.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.07964 · 94.7th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2021-09-20T17:05Z
EPSS history
Timeline
  • 20 SEP 17:05Z
    Symlink Exchange Can Allow Host Filesystem Access
    cvelistv5