Input validation error in containerd - CVE-2026-53488
Published: June 19, 2026
Vulnerability identifier: #VU134886
CSH Severity: High
CVSS v4.0: 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
CVE-ID: CVE-2026-53488
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: containerd
Affected software:
containerd
containerd
Detailed vulnerability description
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.
How to mitigate CVE-2026-53488
Install security update from vendor's website.