CVE-2026-33814 · cross-distro fix matrix

CVE-2026-33814: It was discovered that containerd incorrectly handled HTTP/2 SETTINGS

Affects 8 Linux releases across 38 (distro × package) combinations. First disclosed: 2026-05-07.

CVSS v3:HIGH · 7.5(NVD-published)

Fix per ecosystem

Each block below is a distro release where CVE-2026-33814 has a known fix. Run the listed command on that distro to remediate.

Ubuntu bionic

Source: Ubuntu USN

containerd→ fixed in1.6.12-0ubuntu1~18.04.1+esm4USN-8471-1
```
sudo apt-get install --only-upgrade -y containerd
```
golang-github-containerd-containerd-dev→ fixed in1.6.12-0ubuntu1~18.04.1+esm4USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-containerd-containerd-dev
```

Ubuntu focal

Source: Ubuntu USN

containerd→ fixed in1.6.12-0ubuntu1~20.04.8+esm2USN-8471-1
```
sudo apt-get install --only-upgrade -y containerd
```
golang-github-containerd-containerd-dev→ fixed in1.6.12-0ubuntu1~20.04.8+esm2USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-containerd-containerd-dev
```
containerd-app→ fixed in1.7.24-0ubuntu1~20.04.2+esm2USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd-app
```
containerd→ fixed in1.7.24-0ubuntu1~20.04.2+esm2USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd
```
adsys→ fixed in0.9.2~20.04.2ubuntu0.1+esm2USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys
```
adsys-windows→ fixed in0.9.2~20.04.2ubuntu0.1+esm2USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys-windows
```

Ubuntu jammy

Source: Ubuntu USN

containerd→ fixed in1.6.12-0ubuntu1~22.04.11USN-8471-1
```
sudo apt-get install --only-upgrade -y containerd
```
golang-github-containerd-containerd-dev→ fixed in1.6.12-0ubuntu1~22.04.11USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-containerd-containerd-dev
```
containerd-app→ fixed in2.2.1-0ubuntu1~22.04.2USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd-app
```
containerd→ fixed in2.2.1-0ubuntu1~22.04.2USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd
```
adsys→ fixed in0.16.3~22.04.2ubuntu0.22.04.1USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys
```
adsys-windows→ fixed in0.16.3~22.04.2ubuntu0.22.04.1USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys-windows
```

Ubuntu noble

Source: Ubuntu USN

containerd→ fixed in1.6.24~ds1-1ubuntu1.3+esm3USN-8471-1
```
sudo apt-get install --only-upgrade -y containerd
```
golang-github-containerd-containerd-dev→ fixed in1.6.24~ds1-1ubuntu1.3+esm3USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-containerd-containerd-dev
```
containerd-app→ fixed in2.2.1-0ubuntu1~24.04.3USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd-app
```
containerd→ fixed in2.2.1-0ubuntu1~24.04.3USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd
```
adsys→ fixed in0.16.3~24.04.2ubuntu0.24.04.1USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys
```
adsys-windows→ fixed in0.16.3~24.04.2ubuntu0.24.04.1USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys-windows
```

Ubuntu resolute

Source: Ubuntu USN

containerd→ fixed in1.7.24~ds1-10ubuntu1+esm1USN-8471-1
```
sudo apt-get install --only-upgrade -y containerd
```
golang-github-containerd-containerd-api-dev→ fixed in1.7.24~ds1-10ubuntu1+esm1USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-containerd-containerd-api-dev
```
golang-github-containerd-containerd-dev→ fixed in1.7.24~ds1-10ubuntu1+esm1USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-containerd-containerd-dev
```

containerd-app→ fixed in2.2.2-0ubuntu1.1USN-8472-1

sudo apt-get install --only-upgrade -y containerd-app

containerd→ fixed in2.2.2-0ubuntu1.1USN-8472-1

sudo apt-get install --only-upgrade -y containerd

adsys→ fixed in0.16.4ubuntu1.1USN-8430-1

sudo apt-get install --only-upgrade -y adsys

adsys-windows→ fixed in0.16.4ubuntu1.1USN-8430-1

sudo apt-get install --only-upgrade -y adsys-windows

containerd-stable→ fixed in2.2.2-0ubuntu1.1USN-8473-1

sudo apt-get install --only-upgrade -y containerd-stable

Ubuntu xenial

Source: Ubuntu USN

containerd→ fixed in1.2.6-0ubuntu1~16.04.6+esm7USN-8471-1
```
sudo apt-get install --only-upgrade -y containerd
```
golang-github-docker-containerd-dev→ fixed in1.2.6-0ubuntu1~16.04.6+esm7USN-8471-1
```
sudo apt-get install --only-upgrade -y golang-github-docker-containerd-dev
```

Ubuntu questing

Source: Ubuntu USN

containerd-app→ fixed in2.2.1-0ubuntu1~25.10.2USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd-app
```
containerd→ fixed in2.2.1-0ubuntu1~25.10.2USN-8472-1
```
sudo apt-get install --only-upgrade -y containerd
```
adsys→ fixed in0.16.3ubuntu0.25.10.2USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys
```
adsys-windows→ fixed in0.16.3ubuntu0.25.10.2USN-8430-1
```
sudo apt-get install --only-upgrade -y adsys-windows
```
containerd-stable→ fixed in2.1.6-0ubuntu1~25.10.2USN-8473-1
```
sudo apt-get install --only-upgrade -y containerd-stable
```

Alpine edge

Source: Alpine secdb

go→ fixed in1.26.3-r0
```
apk update && apk add --upgrade go
```

prometheus→ fixed in3.5.4-r0

apk update && apk add --upgrade prometheus

rclone→ fixed in1.74.1-r0
```
apk update && apk add --upgrade rclone
```

Are YOU affected by CVE-2026-33814?

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