UnratedFix available

DEBIAN-CVE-2026-4480

Type: advisorySource: OSV1 source record

A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J" substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.

Announced 26 May 2026Group revision 1

Original source ↗

DEBIAN-CVE-2026-4480

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-2026-4480

samba

Source reference: /affected/0/package/name

Affected versions: 2:4.17.10+dfsg-0+deb12u1
Source reference: /affected/0/versions
2:4.17.10+dfsg-0+deb12u1~bpo11+1
Source reference: /affected/0/versions
2:4.17.11+dfsg-0+deb12u1
Source reference: /affected/0/versions
2:4.17.12+dfsg-0+deb12u1
Source reference: /affected/0/versions
2:4.17.12+dfsg-0+deb12u1~bpo11+1
Source reference: /affected/0/versions
2:4.17.12+dfsg-0+deb12u2
Source reference: /affected/0/versions
2:4.17.12+dfsg-0+deb12u3
Source reference: /affected/0/versions
2:4.17.8+dfsg-2
Source reference: /affected/0/versions
2:4.17.8+dfsg-2.1
Source reference: /affected/0/versions
2:4.17.9+dfsg-0+deb12u1
Source reference: /affected/0/versions
2:4.17.9+dfsg-0+deb12u2
Source reference: /affected/0/versions
2:4.17.9+dfsg-0+deb12u3
Source reference: /affected/0/versions
2:4.17.9+dfsg-0+deb12u3~bpo11+1
Source reference: /affected/0/versions
Fixed versions: 2:4.17.12+dfsg-0+deb12u4
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

samba

Source reference: /affected/1/package/name

Affected versions: 2:4.22.3+dfsg-4
Source reference: /affected/1/versions
2:4.22.4+dfsg-1
Source reference: /affected/1/versions
2:4.22.4+dfsg-1~deb13u1
Source reference: /affected/1/versions
2:4.22.4+dfsg-1~deb13u1~bpo12+1
Source reference: /affected/1/versions
2:4.22.6+dfsg-0+deb13u1
Source reference: /affected/1/versions
2:4.22.6+dfsg-0+deb13u1~bpo12+1
Source reference: /affected/1/versions
2:4.22.8+dfsg-0+deb13u1
Source reference: /affected/1/versions
Fixed versions: 2:4.22.8+dfsg-0+deb13u2
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

samba

Source reference: /affected/2/package/name

Affected versions: 2:4.22.3+dfsg-4
Source reference: /affected/2/versions
2:4.22.4+dfsg-1
Source reference: /affected/2/versions
2:4.22.4+dfsg-1~deb13u1
Source reference: /affected/2/versions
2:4.22.4+dfsg-1~deb13u1~bpo12+1
Source reference: /affected/2/versions
2:4.23.0+dfsg-1
Source reference: /affected/2/versions
2:4.23.0+dfsg-2
Source reference: /affected/2/versions
2:4.23.0+dfsg-3
Source reference: /affected/2/versions
2:4.23.0~rc1+dfsg-1
Source reference: /affected/2/versions
2:4.23.0~rc2+dfsg-1
Source reference: /affected/2/versions
2:4.23.0~rc3+dfsg-1
Source reference: /affected/2/versions
2:4.23.1+dfsg-1
Source reference: /affected/2/versions
2:4.23.2+dfsg-1
Source reference: /affected/2/versions
2:4.23.3+dfsg-1
Source reference: /affected/2/versions
2:4.23.3+dfsg-1~bpo13+1
Source reference: /affected/2/versions
2:4.23.4+dfsg-1
Source reference: /affected/2/versions
2:4.23.4+dfsg-1~bpo13+1
Source reference: /affected/2/versions
2:4.23.5+dfsg-1
Source reference: /affected/2/versions
2:4.23.5+dfsg-1~bpo13+1
Source reference: /affected/2/versions
2:4.23.6+dfsg-1
Source reference: /affected/2/versions
2:4.23.6+dfsg-2
Source reference: /affected/2/versions
2:4.23.6+dfsg-2~bpo13+1
Source reference: /affected/2/versions
2:4.24.0+dfsg-1
Source reference: /affected/2/versions
2:4.24.0~rc1+dfsg-1
Source reference: /affected/2/versions
2:4.24.0~rc1+dfsg-2
Source reference: /affected/2/versions
2:4.24.0~rc1+dfsg-3
Source reference: /affected/2/versions
2:4.24.0~rc2+dfsg-1
Source reference: /affected/2/versions
2:4.24.1+dfsg-1
Source reference: /affected/2/versions
2:4.24.2+dfsg-1
Source reference: /affected/2/versions
2:4.24.2+dfsg-1~bpo13+1
Source reference: /affected/2/versions
2:4.24.3+dfsg-1~bpo13+1
Source reference: /affected/2/versions
Fixed versions: 2:4.24.3+dfsg-1
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": "2:4.17.12+dfsg-0+deb12u4"
          }
        ]
      }
    ],
    "package": {
      "name": "samba",
      "purl": "pkg:deb/debian/samba?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2:4.17.10+dfsg-0+deb12u1",
      "2:4.17.10+dfsg-0+deb12u1~bpo11+1",
      "2:4.17.11+dfsg-0+deb12u1",
      "2:4.17.12+dfsg-0+deb12u1",
      "2:4.17.12+dfsg-0+deb12u1~bpo11+1",
      "2:4.17.12+dfsg-0+deb12u2",
      "2:4.17.12+dfsg-0+deb12u3",
      "2:4.17.8+dfsg-2",
      "2:4.17.8+dfsg-2.1",
      "2:4.17.9+dfsg-0+deb12u1",
      "2:4.17.9+dfsg-0+deb12u2",
      "2:4.17.9+dfsg-0+deb12u3",
      "2:4.17.9+dfsg-0+deb12u3~bpo11+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4480.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:4.22.8+dfsg-0+deb13u2"
          }
        ]
      }
    ],
    "package": {
      "name": "samba",
      "purl": "pkg:deb/debian/samba?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2:4.22.3+dfsg-4",
      "2:4.22.4+dfsg-1",
      "2:4.22.4+dfsg-1~deb13u1",
      "2:4.22.4+dfsg-1~deb13u1~bpo12+1",
      "2:4.22.6+dfsg-0+deb13u1",
      "2:4.22.6+dfsg-0+deb13u1~bpo12+1",
      "2:4.22.8+dfsg-0+deb13u1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4480.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "2:4.24.3+dfsg-1"
          }
        ]
      }
    ],
    "package": {
      "name": "samba",
      "purl": "pkg:deb/debian/samba?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2:4.22.3+dfsg-4",
      "2:4.22.4+dfsg-1",
      "2:4.22.4+dfsg-1~deb13u1",
      "2:4.22.4+dfsg-1~deb13u1~bpo12+1",
      "2:4.23.0+dfsg-1",
      "2:4.23.0+dfsg-2",
      "2:4.23.0+dfsg-3",
      "2:4.23.0~rc1+dfsg-1",
      "2:4.23.0~rc2+dfsg-1",
      "2:4.23.0~rc3+dfsg-1",
      "2:4.23.1+dfsg-1",
      "2:4.23.2+dfsg-1",
      "2:4.23.3+dfsg-1",
      "2:4.23.3+dfsg-1~bpo13+1",
      "2:4.23.4+dfsg-1",
      "2:4.23.4+dfsg-1~bpo13+1",
      "2:4.23.5+dfsg-1",
      "2:4.23.5+dfsg-1~bpo13+1",
      "2:4.23.6+dfsg-1",
      "2:4.23.6+dfsg-2",
      "2:4.23.6+dfsg-2~bpo13+1",
      "2:4.24.0+dfsg-1",
      "2:4.24.0~rc1+dfsg-1",
      "2:4.24.0~rc1+dfsg-2",
      "2:4.24.0~rc1+dfsg-3",
      "2:4.24.0~rc2+dfsg-1",
      "2:4.24.1+dfsg-1",
      "2:4.24.2+dfsg-1",
      "2:4.24.2+dfsg-1~bpo13+1",
      "2:4.24.3+dfsg-1~bpo13+1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-4480.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #56528 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 16:40:43 GMT
Publisher date: Tue, 26 May 2026 15:16:40 GMT

Read the original announcement

Revision history

25 Oct 2026DEBIAN-CVE-2026-4480 · Revision 1Source updated