Ubuntu USN · USN-8472-1

containerd vulnerabilities

Published: Thu, 25 Jun 2026 13:18

CVE-2026-53492CVE-2026-53489CVE-2026-47262CVE-2026-33814CVE-2026-53488CVE-2026-50195

Summary

Several security issues were fixed in containerd.

Details

It was discovered that containerd incorrectly handled HTTP/2 SETTINGS frames. A remote attacker could possibly use this issue to cause containerd to enter an infinite loop, resulting in a denial of service. (CVE-2026-33814) Jakub Ciolek and Kyle Elliott discovered that containerd incorrectly handled group parsing when creating containers from images. An attacker could possibly use this issue to cause containerd to consume excessive memory, resulting in a denial of service. (CVE-2026-47262) Henry Beberman and Robert Prast discovered that containerd incorrectly validated image references when importing container checkpoints. An attacker could possibly use this issue to poison the local image cache and execute arbitrary code in other pods. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-50195) Robert Prast discovered that containerd incorrectly propagated labels from image configurations to containers. An attacker could possibly use this issue to execute arbitrary code on the host. (CVE-2026-53488) Yuming Zhang, Song Li, Sangwon Ryu, Henry Beberman, Robert Prast, Kyle Elliott and Zhenchen Wang discovered that containerd incorrectly validated symlinked paths when restoring container checkpoints. An attacker could possibly use this issue to read arbitrary files on the host, resulting in information disclosure. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-53489) Robert Prast discovered that containerd incorrectly trusted device interface annotations when restoring container checkpoints. An attacker could possibly use this issue to bypass resource allocation restrictions and inject devices or host mounts into a container. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, Ubuntu 25.10 and Ubuntu 26.04 LTS. (CVE-2026-53492)

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu focal

containerd-app→1.7.24-0ubuntu1~20.04.2+esm2apt_upgrade
Standard apt upgrade. Install 1.7.24-0ubuntu1~20.04.2+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd-app
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
containerd→1.7.24-0ubuntu1~20.04.2+esm2apt_upgrade
Standard apt upgrade. Install 1.7.24-0ubuntu1~20.04.2+esm2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu jammy

containerd-app→2.2.1-0ubuntu1~22.04.2apt_upgrade
Standard apt upgrade. Install 2.2.1-0ubuntu1~22.04.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd-app
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
containerd→2.2.1-0ubuntu1~22.04.2apt_upgrade
Standard apt upgrade. Install 2.2.1-0ubuntu1~22.04.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu noble

containerd-app→2.2.1-0ubuntu1~24.04.3apt_upgrade
Standard apt upgrade. Install 2.2.1-0ubuntu1~24.04.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd-app
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
containerd→2.2.1-0ubuntu1~24.04.3apt_upgrade
Standard apt upgrade. Install 2.2.1-0ubuntu1~24.04.3 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu questing

containerd-app→2.2.1-0ubuntu1~25.10.2apt_upgrade
Standard apt upgrade. Install 2.2.1-0ubuntu1~25.10.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd-app
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
containerd→2.2.1-0ubuntu1~25.10.2apt_upgrade
Standard apt upgrade. Install 2.2.1-0ubuntu1~25.10.2 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

Ubuntu resolute

containerd-app→2.2.2-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 2.2.2-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd-app
```
Most apt upgrades restart their service automatically. needrestart lists anything else.
containerd→2.2.2-0ubuntu1.1apt_upgrade
Standard apt upgrade. Install 2.2.2-0ubuntu1.1 from the apt repo.
```
sudo apt-get update
sudo apt-get install --only-upgrade -y containerd
```
Most apt upgrades restart their service automatically. needrestart lists anything else.

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