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DEBIAN-CVE-2026-74859

Type: advisorySource: OSV1 source record

The shell theme installer in gnome-tweaks extracts user-supplied ZIP archives without validating archive member paths. As a result, a crafted theme archive can write files outside ~/.themes by using ../ path traversal, absolute paths, or symlink entries.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-74859

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-2026-74859

gnome-tweaks

Source reference: /affected/0/package/name

Affected versions
42~beta-4

Source reference: /affected/0/versions

45.1-1

Source reference: /affected/0/versions

46.0-1

Source reference: /affected/0/versions

46.0-2

Source reference: /affected/0/versions

46.1-1

Source reference: /affected/0/versions

46~beta-1

Source reference: /affected/0/versions

46~beta-2

Source reference: /affected/0/versions

49.0-1

Source reference: /affected/0/versions

49~rc-1

Source reference: /affected/0/versions

49~rc-2

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

gnome-tweaks

Source reference: /affected/1/package/name

Affected versions
46.1-1

Source reference: /affected/1/versions

49.0-1

Source reference: /affected/1/versions

49~rc-1

Source reference: /affected/1/versions

49~rc-2

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

gnome-tweaks

Source reference: /affected/2/package/name

Affected versions
46.1-1

Source reference: /affected/2/versions

49.0-1

Source reference: /affected/2/versions

49~rc-1

Source reference: /affected/2/versions

49~rc-2

Source reference: /affected/2/versions

Fixed versions
Not stated in this record
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"
          }
        ]
      }
    ],
    "package": {
      "name": "gnome-tweaks",
      "purl": "pkg:deb/debian/gnome-tweaks?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "42~beta-4",
      "45.1-1",
      "46.0-1",
      "46.0-2",
      "46.1-1",
      "46~beta-1",
      "46~beta-2",
      "49.0-1",
      "49~rc-1",
      "49~rc-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-74859.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gnome-tweaks",
      "purl": "pkg:deb/debian/gnome-tweaks?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "46.1-1",
      "49.0-1",
      "49~rc-1",
      "49~rc-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-74859.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "gnome-tweaks",
      "purl": "pkg:deb/debian/gnome-tweaks?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "46.1-1",
      "49.0-1",
      "49~rc-1",
      "49~rc-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-74859.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58345 · Revision 1
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Publisher date
Read the original announcement