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incus — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-62941

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.

Products
incus
Affected versions
0.4-1ubuntu1, 0.5.1-1, 0.5.1-3, 0.6-1, 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, 6.0.4-2, 6.0.5-8, 6.0.5-8ubuntu0.26.04.1~esm1, 7.0.1-5
Fixed versions
Not specified
CVEs
CVE-2026-62941
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 03:11 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-62941

core-osv · Original source

Published 21 Aug 2026, 15:16 UTC

Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.

osv:UBUNTU-CVE-2026-62941

incus

Fixed versions: Not specified

incus

Fixed versions: Not specified

incus

Fixed versions: Not specified

Complete source record
{
  "id": "58a634fcd2f63d4fba61f00f6935ea3b118d7dd8d041fe6d1b9157752bf3f857",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-62941",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-62941",
    "summary": "Incus is a system container and virtual machine manager. Prior to version 7.3.0, when copying an instance across projects, the project restriction check (`AllowInstanceCreation`) runs BEFORE the source instance's configuration is merged into the request. Dangerous configuration keys (including `security.privileged`, `raw.lxc`, `raw.apparmor`) from the source instance are merged AFTER the check passes, bypassing all project restrictions on the target project. Version 7.3.0 patches the issue.",
    "evidence": "osv:UBUNTU-CVE-2026-62941",
    "products": [
      {
        "name": {
          "value": "incus",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.4-1ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.5.1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.5.1-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "0.6-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.2+esm1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.3+esm1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.3+esm2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.0-1ubuntu0.3+esm3",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "incus",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "6.0.5-8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "7.0.1-5",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "incus",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "6.0.4-2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "6.0.5-8",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "6.0.5-8ubuntu0.26.04.1~esm1",
            "evidence": "/affected/2/versions"
          }
        ]
      }
    ],
    "severity": "critical",
    "structured": {
      "id": "UBUNTU-CVE-2026-62941",
      "aliases": [
        "UBUNTU-CVE-2026-62941"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "incus",
            "purl": "pkg:deb/ubuntu/incus?arch=source&distro=esm-apps%2Fnoble",
            "ecosystem": "Ubuntu:Pro:24.04:LTS"
          },
          "versions": [
            "0.4-1ubuntu1",
            "0.5.1-1",
            "0.5.1-3",
            "0.6-1",
            "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"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-62941.json"
          },
          "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"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "incus",
            "purl": "pkg:deb/ubuntu/incus?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "6.0.5-8",
            "7.0.1-5"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-62941.json"
          },
          "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"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "incus",
            "purl": "pkg:deb/ubuntu/incus?arch=source&distro=esm-apps%2Fresolute",
            "ecosystem": "Ubuntu:Pro:26.04:LTS"
          },
          "versions": [
            "6.0.4-2",
            "6.0.5-8",
            "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-2026-62941.json"
          },
          "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"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T13:00:30.963638010Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-62941"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-62941",
        "https://www.cve.org/CVERecord?id=CVE-2026-62941",
        "https://github.com/lxc/incus/security/advisories/GHSA-mq9x-prm8-3vpw",
        "https://github.com/lxc/incus/pull/3750"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-62941",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 360632,
  "published_at": "2026-08-21T15:16:00+00:00"
}