UnratedFix available

DEBIAN-CVE-2026-33897

Type: advisorySource: OSV1 source record

Incus is a system container and virtual machine manager. Prior to version 6.23.0, instance template files can be used to cause arbitrary read or writes as root on the host server. Incus allows for pongo2 templates within instances which can be used at various times in the instance lifecycle to template files inside of the instance. This particular implementation of pongo2 within Incus allowed for file read/write but with the expectation that the pongo2 chroot feature would isolate all such access to the instance's filesystem. This was allowed such that a template could theoretically read a file and then generate a new version of said file. Unfortunately the chroot isolation mechanism is entirely skipped by pongo2 leading to easy access to the entire system's filesystem with root privileges. Version 6.23.0 patches the issue.

Announced 26 Mar 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-33897

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-33897

incus

Source reference: /affected/0/package/name

Affected versions: 6.0.4-2
Source reference: /affected/0/versions
6.0.4-2+deb13u1
Source reference: /affected/0/versions
6.0.4-2+deb13u1~bpo12+1
Source reference: /affected/0/versions
6.0.4-2+deb13u2
Source reference: /affected/0/versions
6.0.4-2+deb13u2~bpo12+1
Source reference: /affected/0/versions
6.0.4-2+deb13u3
Source reference: /affected/0/versions
6.0.4-2+deb13u3~bpo12+1
Source reference: /affected/0/versions
6.0.4-2+deb13u4
Source reference: /affected/0/versions
6.0.4-2+deb13u4~bpo12+1
Source reference: /affected/0/versions
6.0.4-2+deb13u5~bpo12+1
Source reference: /affected/0/versions
Fixed versions: 6.0.4-2+deb13u5
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

incus

Source reference: /affected/1/package/name

Affected versions: 6.0.4-2
Source reference: /affected/1/versions
6.0.4-3
Source reference: /affected/1/versions
6.0.5-1
Source reference: /affected/1/versions
6.0.5-2
Source reference: /affected/1/versions
6.0.5-3
Source reference: /affected/1/versions
6.0.5-4
Source reference: /affected/1/versions
6.0.5-5
Source reference: /affected/1/versions
6.0.5-6
Source reference: /affected/1/versions
6.0.5-7
Source reference: /affected/1/versions
6.0.5-8
Source reference: /affected/1/versions
6.0.6-1
Source reference: /affected/1/versions
Fixed versions: 6.0.6-2
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

lxd

Source reference: /affected/2/package/name

Affected versions: 5.0.2+git20231211.1364ae4-1
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-2
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-3
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-4
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-5
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-6
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-7
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-8
Source reference: /affected/2/versions
5.0.2+git20231211.1364ae4-9
Source reference: /affected/2/versions
5.0.2-5
Source reference: /affected/2/versions
5.0.2-5+deb12u1
Source reference: /affected/2/versions
5.0.2-5+deb12u2
Source reference: /affected/2/versions
5.0.2-5+deb12u3
Source reference: /affected/2/versions
5.0.2-5+deb12u4
Source reference: /affected/2/versions
5.0.2-5+deb12u5
Source reference: /affected/2/versions
5.0.2-5+deb12u6
Source reference: /affected/2/versions
5.0.2-6
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

lxd

Source reference: /affected/3/package/name

Affected versions: 5.0.2+git20231211.1364ae4-9
Source reference: /affected/3/versions
5.0.2+git20231211.1364ae4-9+deb13u1
Source reference: /affected/3/versions
5.0.2+git20231211.1364ae4-9+deb13u2
Source reference: /affected/3/versions
5.0.2+git20231211.1364ae4-9+deb13u3
Source reference: /affected/3/versions
Fixed versions: 5.0.2+git20231211.1364ae4-9+deb13u4
Source reference: /affected/3/ranges
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "6.0.4-2+deb13u5"
          }
        ]
      }
    ],
    "package": {
      "name": "incus",
      "purl": "pkg:deb/debian/incus?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "6.0.4-2",
      "6.0.4-2+deb13u1",
      "6.0.4-2+deb13u1~bpo12+1",
      "6.0.4-2+deb13u2",
      "6.0.4-2+deb13u2~bpo12+1",
      "6.0.4-2+deb13u3",
      "6.0.4-2+deb13u3~bpo12+1",
      "6.0.4-2+deb13u4",
      "6.0.4-2+deb13u4~bpo12+1",
      "6.0.4-2+deb13u5~bpo12+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33897.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "6.0.6-2"
          }
        ]
      }
    ],
    "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"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33897.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "lxd",
      "purl": "pkg:deb/debian/lxd?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "5.0.2+git20231211.1364ae4-1",
      "5.0.2+git20231211.1364ae4-2",
      "5.0.2+git20231211.1364ae4-3",
      "5.0.2+git20231211.1364ae4-4",
      "5.0.2+git20231211.1364ae4-5",
      "5.0.2+git20231211.1364ae4-6",
      "5.0.2+git20231211.1364ae4-7",
      "5.0.2+git20231211.1364ae4-8",
      "5.0.2+git20231211.1364ae4-9",
      "5.0.2-5",
      "5.0.2-5+deb12u1",
      "5.0.2-5+deb12u2",
      "5.0.2-5+deb12u3",
      "5.0.2-5+deb12u4",
      "5.0.2-5+deb12u5",
      "5.0.2-5+deb12u6",
      "5.0.2-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33897.json"
    },
    "ecosystem_specific": {
      "urgency": "end-of-life"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "5.0.2+git20231211.1364ae4-9+deb13u4"
          }
        ]
      }
    ],
    "package": {
      "name": "lxd",
      "purl": "pkg:deb/debian/lxd?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "5.0.2+git20231211.1364ae4-9",
      "5.0.2+git20231211.1364ae4-9+deb13u1",
      "5.0.2+git20231211.1364ae4-9+deb13u2",
      "5.0.2+git20231211.1364ae4-9+deb13u3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33897.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #57540 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:19:36 GMT
Publisher date: Thu, 26 Mar 2026 23:16:20 GMT

Read the original announcement