CVE-2026-54250
Published:June 25, 2026
Updated:June 29, 2026
K3s is a fully conformant production-ready Kubernetes distribution. Prior to 1.35.3+k3s1, 1.34.6+k3s1, v1.33.10+k3s1, a path traversal vulnerability exists in K3s's etcd snapshot decompression functionality. Zip files containing archive members with maliciously crafted names can be written to arbitrary locations on the filesystem when an administrator restores the archive as a compressed etcd snapshot. This vulnerability is fixed in 1.35.3+k3s1, 1.34.6+k3s1, v1.33.10+k3s1.
Affected Packages
github.com/k3s-io/k3s (GO):
Affected version(s) >=v1.33.0+k3s1 <v1.33.10+k3s1Fix Suggestion:
Update to version v1.33.10+k3s1github.com/k3s-io/k3s (GO):
Affected version(s) >=v1.34.1+k3s1 <v1.34.6+k3s1Fix Suggestion:
Update to version v1.34.6+k3s1github.com/k3s-io/k3s (GO):
Affected version(s) >=v1.35.0+k3s1 <v1.35.3+k3s1Fix Suggestion:
Update to version v1.35.3+k3s1Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.2
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
EPSS
Base Score:
0.12