SB2026070987 - Input validation error in Multicluster Engine for Kubernetes 2.10
Published: July 9, 2026
Security Bulletin ID
SB2026070987
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2026-53488)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to execute arbitrary commands on the host.
The vulnerability exists due to improper input validation in the containerd CRI plugin when propagating image configuration labels to containers. A remote attacker can supply a crafted image with malicious labels to execute arbitrary commands on the host.
Exploitation requires a plugin that consumes container labels for some operations.
Remediation
Install update from vendor's website.