CVE-2026-40215 · cross-distro fix matrix

CVE-2026-40215: Guannan Wang, Zhanpeng Liu, Guancheng Li, and Emma Reuter

Affects 9 Linux releases across 9 (distro × package) combinations. First disclosed: 2026-05-20.

Fix per ecosystem

Each block below is a distro release where CVE-2026-40215 has a known fix. Run the listed command on that distro to remediate.

Ubuntu jammy

Source: Ubuntu USN

openvpn→ fixed in2.5.11-0ubuntu0.22.04.3USN-8286-1
```
sudo apt-get install --only-upgrade -y openvpn
```

Ubuntu noble

Source: Ubuntu USN

openvpn→ fixed in2.6.19-0ubuntu0.24.04.2USN-8286-1
```
sudo apt-get install --only-upgrade -y openvpn
```

Ubuntu questing

Source: Ubuntu USN

openvpn→ fixed in2.6.19-0ubuntu0.25.10.2USN-8286-1
```
sudo apt-get install --only-upgrade -y openvpn
```

Ubuntu resolute

Source: Ubuntu USN

openvpn→ fixed in2.7.0-1ubuntu1.1USN-8286-1

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

Debian bookworm

Source: Debian Security Tracker

openvpn→ fixed in2.6.14-0+deb12u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openvpn
```

Debian trixie

Source: Debian Security Tracker

openvpn→ fixed in2.6.14-1+deb13u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openvpn
```

Alpine v3.20

Source: Alpine secdb

openvpn→ fixed in2.6.20-r0
```
apk update && apk add --upgrade openvpn
```

Alpine v3.21

Source: Alpine secdb

openvpn→ fixed in2.6.20-r0
```
apk update && apk add --upgrade openvpn
```

Alpine edge

Source: Alpine secdb

openvpn→ fixed in2.6.20-r0
```
apk update && apk add --upgrade openvpn
```

Are YOU affected by CVE-2026-40215?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

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