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DEBIAN-CVE-2026-24708

Type: advisorySource: OSV1 source record

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-24708

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-2026-24708

nova

Source reference: /affected/0/package/name

Affected versions
2:26.1.0-4

Source reference: /affected/0/versions

2:26.2.2-1~deb12u3

Source reference: /affected/0/versions

Fixed versions
2:26.2.2-1~deb12u4

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

nova

Source reference: /affected/1/package/name

Affected versions
2:31.0.0-6

Source reference: /affected/1/versions

2:31.0.0-6+deb13u1

Source reference: /affected/1/versions

Fixed versions
2:31.0.0-6+deb13u2

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

nova

Source reference: /affected/2/package/name

Affected versions
2:31.0.0-6

Source reference: /affected/2/versions

2:31.0.0-7

Source reference: /affected/2/versions

2:32.0.0-1

Source reference: /affected/2/versions

2:32.0.0~rc1-1

Source reference: /affected/2/versions

2:32.0.0~rc1-2

Source reference: /affected/2/versions

2:32.0.0~rc1-3

Source reference: /affected/2/versions

2:32.1.0-1

Source reference: /affected/2/versions

2:32.1.0-2

Source reference: /affected/2/versions

2:32.1.0-3

Source reference: /affected/2/versions

2:32.1.0-4

Source reference: /affected/2/versions

2:32.1.0-5

Source reference: /affected/2/versions

2:32.1.0-6

Source reference: /affected/2/versions

Fixed versions
2:32.1.0-7

Source reference: /affected/2/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": "2:26.2.2-1~deb12u4"
          }
        ]
      }
    ],
    "package": {
      "name": "nova",
      "purl": "pkg:deb/debian/nova?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2:26.1.0-4",
      "2:26.2.2-1~deb12u3"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-24708.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:31.0.0-6+deb13u2"
          }
        ]
      }
    ],
    "package": {
      "name": "nova",
      "purl": "pkg:deb/debian/nova?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2:31.0.0-6",
      "2:31.0.0-6+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-24708.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:32.1.0-7"
          }
        ]
      }
    ],
    "package": {
      "name": "nova",
      "purl": "pkg:deb/debian/nova?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2:31.0.0-6",
      "2:31.0.0-7",
      "2:32.0.0-1",
      "2:32.0.0~rc1-1",
      "2:32.0.0~rc1-2",
      "2:32.0.0~rc1-3",
      "2:32.1.0-1",
      "2:32.1.0-2",
      "2:32.1.0-3",
      "2:32.1.0-4",
      "2:32.1.0-5",
      "2:32.1.0-6"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-24708.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#56261 · Revision 1
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Publisher date
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