CVE-2026-23954 · cross-distro fix matrix

CVE-2026-23954: Incus is a system container and virtual machine manager. Versions 6.21.0 and below allow a user with the ability to launch a container with a custom image (e.g a member of the ‘incus’ group) to use directory traversal or symbolic links in the templating functionality to achieve host arbitrary file r

Affects 3 Linux releases across 5 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2026-23954 has a known fix. Run the listed command on that distro to remediate.

Debian bookworm

Source: Debian Security Tracker

lxd→ fixed in5.0.2-5+deb12u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lxd
```

Debian trixie

Source: Debian Security Tracker

incus→ fixed in6.0.4-2+deb13u4urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y incus
```
lxd→ fixed in5.0.2+git20231211.1364ae4-9+deb13u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y lxd
```

Alpine edge

Source: Alpine secdb

incus-feature→ fixed in6.21.0-r0

apk update && apk add --upgrade incus-feature

incus→ fixed in6.0.5-r6
```
apk update && apk add --upgrade incus
```

Are YOU affected by CVE-2026-23954?

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

Continuous monitoring beats manual checking

CVE-2026-23954dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)