Alpine: multiple incus packages: security update to 7.0.1-r0

high Tenable Self-Hosted Container Security Plugin ID 444651

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- Incus is a system container and virtual machine manager. Prior to version 7.2.0, an arbitrary file write
exists in the Incus client when a malicious image server returns a crafted `Incus-Image-Hash` header. This
can lead to arbitrary command execution as root on the server. Version 7.2.0 patches the issue.
(CVE-2026-48769)

- Incus is a system container and virtual machine manager. Prior to version 7.1.0,
`(*backend).CreateInstanceFromBackup` in `internal/server/storage/backend.go` contains a nil-pointer
dereference that an authenticated user with permission to create instances in any project can trigger
remotely by uploading a crafted backup tarball. The Incus daemon panics and the process crashes, causing
denial of service to every project on that cluster member. This is a sibling of `GHSA-fwj8-62r8-8p8m`,
`GHSA-r7w7-mmxr-47r9`, and `GHSA-x5r6-jr56-89pv` (all assigned 2026-05-04). Those patches added guards on
adjacent fields of the same `backup/config.Config` struct; the `Volume` field on the instance-import path
was missed. Version 7.1.0 contains an updated patch. (CVE-2026-47753)

- Incus is a system container and virtual machine manager. Prior to version 7.2.0, a specially crafted image
can be used to read or create/write arbitrary files on the host; possibly leading to arbitrary command
execution. Version 7.2.0 fixes the issue. (CVE-2026-48749)

- Incus is a system container and virtual machine manager. Prior to version 7.2.0, the `record-output`
parameter of the `/instances/$name/exec` endpoint stores the output of the command in the `exec-output`
directory of the instance. If `exec-output` is a symlink, file named `exec_UUID.stdout` and
`exec_UUID.stderr` can be written to an arbitrary location where the `.stdout` file will contain arbitrary
content. This behavior can be abused for arbitrary command execution. Version 7.2.0 contains a patch.
(CVE-2026-48750)

- Incus is a system container and virtual machine manager. Prior to version 7.2.0, instance snapshots ignore
the `restricted.containers.lowlevel=block` setting; allowing for arbitrary command execution on the Incus
server by abusing lowlevel hooks such as `raw.lxc` and `raw.qemu`. Version 7.2.0 patches the issue.
(CVE-2026-48751)

Solution

Update the incus library and its related packages to version 7.0.1-r0 or later.

Plugin Details

Severity: High

ID: 444651

Version: Revision 1.2

Type: Local

Family: Alpine Linux Local Security Checks

Published: 7/11/2026

Updated: 8/24/2026

Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.18

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-48769

CVSS v3

Risk Factor: Critical

Base Score: 9.9

Temporal Score: 8.6

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.3

Threat Score: 4.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2026-47753

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/10/2026

Reference Information

CVE: CVE-2026-47753, CVE-2026-48749, CVE-2026-48750, CVE-2026-48751, CVE-2026-48752, CVE-2026-48753, CVE-2026-48754, CVE-2026-48755, CVE-2026-48756, CVE-2026-48769, CVE-2026-55621, CVE-2026-55622

Detections

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