CVE-2026-41647 Incus: Nil-Pointer Dereference via S3 Bucket Import

What is CVE-2026-41647?

CVE-2026-41647 is a medium-severity vulnerability in lxc incus, published on 7 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Incus is a system container and virtual machine manager. Prior to version 7.0.0, a missing error handling could lead an authenticated Incus user to cause a daemon crash through the import of a truncated storage bucket backup file. This issue has been patched in version 7.0.0.

Weakness: CWE-476

Which versions are affected by CVE-2026-41647?

4 open source packages ship an affected version, including github.com/lxc/incus/v6/cmd/incusd, github.com/lxc/incus and github.com/lxc/incus/v6. It affects 1 product.

Products include Linuxcontainers Incus.

How do I fix CVE-2026-41647?

Upgrade to a fixed version.

Is CVE-2026-41647 being exploited?

There is no known exploitation of CVE-2026-41647 in the wild and no public exploit code.

Other vulnerabilities in lxc incus

• CVE-2026-33897 Incus vulnerable to arbitrary file read and write through pongo templates Critical 10.0
• CVE-2026-33945 Abitrary file write through systemd-creds option Critical 10.0
• CVE-2026-33898 Local Incus UI web server vulnerable to nuthentication bypass High 8.8
• CVE-2026-23953 Incus container environment configuration newline injection High 8.7
• CVE-2026-23954 Incus container image templating arbitrary host file read and write High 8.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-41647, GHSA-fwj8-62r8-8p8m, GO-2026-5384, UBUNTU-CVE-2026-41647.