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incus — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2026-47753

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.

Products
incus
Affected versions
6.0.4-2, 6.0.4-3, 6.0.5-1, 6.0.5-2, 6.0.5-3, 6.0.5-4, 6.0.5-5, 6.0.5-6, 6.0.5-7, 6.0.5-8, 6.0.6-1, 6.0.6-2, 6.0.6-3, 6.14.0-1~exp1, 6.15.0-1~exp1, 6.16.0-1~exp1, 6.17.0-1~exp1, 6.20.0-1~exp1, 6.21.0-1~exp1, 6.22.0-1~exp1, 6.23.0-1~exp1, 7.0.0-1, 7.0.0-1~bpo13+1, 7.0.0-2~bpo13+1
Fixed versions
7.0.0-2
CVEs
CVE-2026-47753
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 19:58 UTC · Revision 1

Source evidence

DEBIAN-CVE-2026-47753

core-osv · Original source

Published 21 Aug 2026, 15:16 UTC

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.

osv:DEBIAN-CVE-2026-47753

incus

Fixed versions: 7.0.0-2

Complete source record
{
  "id": "bee07f89047489d54a1dd1f5be1bac059f72c2a9e5460e7fb1ede0d8f517ffd6",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-47753",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2026-47753",
    "summary": "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.",
    "evidence": "osv:DEBIAN-CVE-2026-47753",
    "products": [
      {
        "name": {
          "value": "incus",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.0.0-2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "6.0.4-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.4-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.5-8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.6-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.6-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.0.6-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.14.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.15.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.16.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.17.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.20.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.21.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.22.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "6.23.0-1~exp1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "7.0.0-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "7.0.0-1~bpo13+1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "7.0.0-2~bpo13+1",
            "evidence": "/affected/0/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2026-47753",
      "aliases": [
        "DEBIAN-CVE-2026-47753"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "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/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "7.0.0-2"
                }
              ]
            }
          ],
          "package": {
            "name": "incus",
            "purl": "pkg:deb/debian/incus?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "versions": [
            "6.0.4-2",
            "6.0.4-3",
            "6.0.5-1",
            "6.0.5-2",
            "6.0.5-3",
            "6.0.5-4",
            "6.0.5-5",
            "6.0.5-6",
            "6.0.5-7",
            "6.0.5-8",
            "6.0.6-1",
            "6.0.6-2",
            "6.0.6-3",
            "6.14.0-1~exp1",
            "6.15.0-1~exp1",
            "6.16.0-1~exp1",
            "6.17.0-1~exp1",
            "6.20.0-1~exp1",
            "6.21.0-1~exp1",
            "6.22.0-1~exp1",
            "6.23.0-1~exp1",
            "7.0.0-1",
            "7.0.0-1~bpo13+1",
            "7.0.0-2~bpo13+1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47753.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-16T09:47:29.225746044Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-47753"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2026-47753"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-47753",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 338603,
  "published_at": "2026-08-21T15:16:40.067+00:00"
}