CVE-2026-33945 in lxc incus

Сводка (Английский)

Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can set a configuration key named something like `systemd.credential.../../../../../../root/.bashrc` to cause Incus to write outside of the `credentials` directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is `systemd.credential.XYZ` where `XYZ` can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. Version 6.23.0 fixes the issue.

Ответственный

GitHub_M

Резервировать

24.03.2026

Раскрытие

27.03.2026

Записи

VulDB provides additional information and datapoints for this CVE:

ИД	Уязвимость	CWE	Экс	Кон	CVE
353799	lxc incus Configuration обход каталога	22	Не определено	Официальное исправление	CVE-2026-33945