UBUNTU-CVE-2026-115375

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Source
https://ubuntu.com/security/CVE-2026-115375
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115375.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-115375
Upstream
Published
2026-10-26T00:00:00Z
Modified
2026-10-27T04:17:46Z
Severity
  • 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • 9.4 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Incus 7.0.0 before 7.0.2 and 7.1.0 before 7.5.0 contains a path traversal vulnerability that allows clients able to create instances to write files on the host. The flaw stems from unvalidated dependent custom volume names in instance backup index.yaml files. Attackers can import a crafted instance backup with ../ sequences in dependent volume names to create root-owned directories with controlled content, leading to full host compromise.

References

Affected packages

Ubuntu:Pro:24.04:LTS / incus

Package

Name
incus
Purl
pkg:deb/ubuntu/incus?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.4-1ubuntu1
0.5.1-1
0.5.1-3
0.6-1
6.*
6.0.0-1
6.0.0-1ubuntu0.1
6.0.0-1ubuntu0.2
6.0.0-1ubuntu0.2+esm1
6.0.0-1ubuntu0.3
6.0.0-1ubuntu0.3+esm1
6.0.0-1ubuntu0.3+esm2
6.0.0-1ubuntu0.3+esm3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-lxc-incus-dev",
            "binary_version":  "6.0.0-1ubuntu0.3+esm3"
        },
        {
            "binary_name":  "incus",
            "binary_version":  "6.0.0-1ubuntu0.3+esm3"
        },
        {
            "binary_name":  "incus-agent",
            "binary_version":  "6.0.0-1ubuntu0.3+esm3"
        },
        {
            "binary_name":  "incus-client",
            "binary_version":  "6.0.0-1ubuntu0.3+esm3"
        },
        {
            "binary_name":  "incus-migrate",
            "binary_version":  "6.0.0-1ubuntu0.3+esm3"
        },
        {
            "binary_name":  "incus-tools",
            "binary_version":  "6.0.0-1ubuntu0.3+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115375.json"

Ubuntu:26.10 / incus

Package

Name
incus
Purl
pkg:deb/ubuntu/incus?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.0.5-8
7.*
7.0.1-5

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-lxc-incus-dev",
            "binary_version":  "7.0.1-5"
        },
        {
            "binary_name":  "incus",
            "binary_version":  "7.0.1-5"
        },
        {
            "binary_name":  "incus-agent",
            "binary_version":  "7.0.1-5"
        },
        {
            "binary_name":  "incus-base",
            "binary_version":  "7.0.1-5"
        },
        {
            "binary_name":  "incus-client",
            "binary_version":  "7.0.1-5"
        },
        {
            "binary_name":  "incus-extra",
            "binary_version":  "7.0.1-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115375.json"

Ubuntu:Pro:26.04:LTS / incus

Package

Name
incus
Purl
pkg:deb/ubuntu/incus?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.0.4-2
6.0.5-8
6.0.5-8ubuntu0.26.04.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "golang-github-lxc-incus-dev",
            "binary_version":  "6.0.5-8ubuntu0.26.04.1~esm1"
        },
        {
            "binary_name":  "incus",
            "binary_version":  "6.0.5-8ubuntu0.26.04.1~esm1"
        },
        {
            "binary_name":  "incus-agent",
            "binary_version":  "6.0.5-8ubuntu0.26.04.1~esm1"
        },
        {
            "binary_name":  "incus-base",
            "binary_version":  "6.0.5-8ubuntu0.26.04.1~esm1"
        },
        {
            "binary_name":  "incus-client",
            "binary_version":  "6.0.5-8ubuntu0.26.04.1~esm1"
        },
        {
            "binary_name":  "incus-extra",
            "binary_version":  "6.0.5-8ubuntu0.26.04.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115375.json"