UnratedFix available

DEBIAN-CVE-2026-7774

Type: advisorySource: OSV1 source record

tarfile.data_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() to write files outside the destination directory, subject to the permissions of the extracting process.

Announced 4 Jun 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-7774

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-2026-7774

pypy3

Source reference: /affected/0/package/name

Affected versions: 7.3.19+dfsg-2
Source reference: /affected/0/versions
7.3.20+dfsg-1
Source reference: /affected/0/versions
7.3.20+dfsg-2
Source reference: /affected/0/versions
7.3.20+dfsg-3
Source reference: /affected/0/versions
7.3.20+dfsg-4
Source reference: /affected/0/versions
7.3.21+dfsg-1
Source reference: /affected/0/versions
7.3.21+dfsg-2
Source reference: /affected/0/versions
7.3.21+dfsg-3
Source reference: /affected/0/versions
7.3.21+dfsg-4
Source reference: /affected/0/versions
7.3.22+dfsg-1
Source reference: /affected/0/versions
7.3.23+dfsg-1
Source reference: /affected/0/versions
7.3.23+dfsg-2
Source reference: /affected/0/versions
8.0.0+dfsg-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

pypy3

Source reference: /affected/1/package/name

Affected versions: 7.3.19+dfsg-2
Source reference: /affected/1/versions
7.3.20+dfsg-1
Source reference: /affected/1/versions
7.3.20+dfsg-2
Source reference: /affected/1/versions
7.3.20+dfsg-3
Source reference: /affected/1/versions
7.3.20+dfsg-4
Source reference: /affected/1/versions
7.3.21+dfsg-1
Source reference: /affected/1/versions
7.3.21+dfsg-2
Source reference: /affected/1/versions
7.3.21+dfsg-3
Source reference: /affected/1/versions
7.3.21+dfsg-4
Source reference: /affected/1/versions
7.3.22+dfsg-1
Source reference: /affected/1/versions
7.3.23+dfsg-1
Source reference: /affected/1/versions
7.3.23+dfsg-2
Source reference: /affected/1/versions
Fixed versions: 8.0.0+dfsg-1
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

python3.13

Source reference: /affected/2/package/name

Affected versions: 3.13.5-2
Source reference: /affected/2/versions
3.13.5-2+deb13u1
Source reference: /affected/2/versions
3.13.5-2+deb13u2
Source reference: /affected/2/versions
Fixed versions: 3.13.5-2+deb13u3
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

python3.13

Source reference: /affected/3/package/name

Affected versions: 3.13.11-1
Source reference: /affected/3/versions
3.13.12-1
Source reference: /affected/3/versions
3.13.5-2
Source reference: /affected/3/versions
3.13.6-1
Source reference: /affected/3/versions
3.13.7-1
Source reference: /affected/3/versions
3.13.8-1
Source reference: /affected/3/versions
3.13.9-1
Source reference: /affected/3/versions
Fixed versions: 3.13.14-1
Source reference: /affected/3/ranges
Prerequisites: Not stated in this record

python3.14

Source reference: /affected/4/package/name

Affected versions: 3.14.0-1
Source reference: /affected/4/versions
3.14.0-2
Source reference: /affected/4/versions
3.14.0-3
Source reference: /affected/4/versions
3.14.0-4
Source reference: /affected/4/versions
3.14.0-5
Source reference: /affected/4/versions
3.14.0~a7-1
Source reference: /affected/4/versions
3.14.0~b1-1
Source reference: /affected/4/versions
3.14.0~b2-1
Source reference: /affected/4/versions
3.14.0~b3-1
Source reference: /affected/4/versions
3.14.0~b4-1
Source reference: /affected/4/versions
3.14.0~rc1-1
Source reference: /affected/4/versions
3.14.0~rc2-1
Source reference: /affected/4/versions
3.14.0~rc3-1
Source reference: /affected/4/versions
3.14.2-1
Source reference: /affected/4/versions
3.14.3-1
Source reference: /affected/4/versions
3.14.3-2
Source reference: /affected/4/versions
3.14.3-3
Source reference: /affected/4/versions
3.14.3-4
Source reference: /affected/4/versions
3.14.3-5
Source reference: /affected/4/versions
3.14.4-1
Source reference: /affected/4/versions
3.14.4-2
Source reference: /affected/4/versions
3.14.5-1
Source reference: /affected/4/versions
3.14.5~rc1-1
Source reference: /affected/4/versions
Fixed versions: 3.14.6-1
Source reference: /affected/4/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"
          }
        ]
      }
    ],
    "package": {
      "name": "pypy3",
      "purl": "pkg:deb/debian/pypy3?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "7.3.19+dfsg-2",
      "7.3.20+dfsg-1",
      "7.3.20+dfsg-2",
      "7.3.20+dfsg-3",
      "7.3.20+dfsg-4",
      "7.3.21+dfsg-1",
      "7.3.21+dfsg-2",
      "7.3.21+dfsg-3",
      "7.3.21+dfsg-4",
      "7.3.22+dfsg-1",
      "7.3.23+dfsg-1",
      "7.3.23+dfsg-2",
      "8.0.0+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7774.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "8.0.0+dfsg-1"
          }
        ]
      }
    ],
    "package": {
      "name": "pypy3",
      "purl": "pkg:deb/debian/pypy3?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "7.3.19+dfsg-2",
      "7.3.20+dfsg-1",
      "7.3.20+dfsg-2",
      "7.3.20+dfsg-3",
      "7.3.20+dfsg-4",
      "7.3.21+dfsg-1",
      "7.3.21+dfsg-2",
      "7.3.21+dfsg-3",
      "7.3.21+dfsg-4",
      "7.3.22+dfsg-1",
      "7.3.23+dfsg-1",
      "7.3.23+dfsg-2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7774.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.13.5-2+deb13u3"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.13",
      "purl": "pkg:deb/debian/python3.13?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "3.13.5-2",
      "3.13.5-2+deb13u1",
      "3.13.5-2+deb13u2"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7774.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.13.14-1"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.13",
      "purl": "pkg:deb/debian/python3.13?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "3.13.11-1",
      "3.13.12-1",
      "3.13.5-2",
      "3.13.6-1",
      "3.13.7-1",
      "3.13.8-1",
      "3.13.9-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7774.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "3.14.6-1"
          }
        ]
      }
    ],
    "package": {
      "name": "python3.14",
      "purl": "pkg:deb/debian/python3.14?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "3.14.0-1",
      "3.14.0-2",
      "3.14.0-3",
      "3.14.0-4",
      "3.14.0-5",
      "3.14.0~a7-1",
      "3.14.0~b1-1",
      "3.14.0~b2-1",
      "3.14.0~b3-1",
      "3.14.0~b4-1",
      "3.14.0~rc1-1",
      "3.14.0~rc2-1",
      "3.14.0~rc3-1",
      "3.14.2-1",
      "3.14.3-1",
      "3.14.3-2",
      "3.14.3-3",
      "3.14.3-4",
      "3.14.3-5",
      "3.14.4-1",
      "3.14.4-2",
      "3.14.5-1",
      "3.14.5~rc1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-7774.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #58196 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:43:26 GMT
Publisher date: Thu, 04 Jun 2026 16:16:42 GMT

Read the original announcement