UBUNTU-CVE-2026-115377

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Source
https://ubuntu.com/security/CVE-2026-115377
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-115377.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-115377
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 before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability that allows malicious migration sources to write host files by planting symlinks in transferred volumes. Attackers can craft rsync or btrfs receive streams with a symlink such as rootfs pointing to the host root, writing files as root for 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-2026-115377.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-2026-115377.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-2026-115377.json"