UBUNTU-CVE-2026-7774

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Source
https://ubuntu.com/security/CVE-2026-7774
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-7774
Upstream
Downstream
Related
Published
2026-06-04T16:16:00Z
Modified
2026-07-06T16:03:40.961024287Z
Severity
  • 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:20.04:LTS
pypy3

Package

Name
pypy3
Purl
pkg:deb/ubuntu/pypy3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.1.1+dfsg-1
7.2.0+dfsg-1
7.3.0+dfsg-1
7.3.0+dfsg-1ubuntu2
7.3.0+dfsg-1ubuntu3
7.3.1+dfsg-4
7.3.1+dfsg-4ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.3.1+dfsg-4ubuntu0.1",
            "binary_name": "pypy3"
        },
        {
            "binary_version": "7.3.1+dfsg-4ubuntu0.1",
            "binary_name": "pypy3-lib"
        },
        {
            "binary_version": "7.3.1+dfsg-4ubuntu0.1",
            "binary_name": "pypy3-lib-testsuite"
        },
        {
            "binary_version": "7.3.1+dfsg-4ubuntu0.1",
            "binary_name": "pypy3-tk"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
Ubuntu:22.04:LTS
pypy3

Package

Name
pypy3
Purl
pkg:deb/ubuntu/pypy3?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.3.5+dfsg-2
7.3.7+dfsg-1
7.3.7+dfsg-4
7.3.7+dfsg-5
7.3.8+dfsg-2
7.3.9+dfsg-1
7.3.9+dfsg-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.3.9+dfsg-1ubuntu0.1",
            "binary_name": "pypy3"
        },
        {
            "binary_version": "7.3.9+dfsg-1ubuntu0.1",
            "binary_name": "pypy3-lib"
        },
        {
            "binary_version": "7.3.9+dfsg-1ubuntu0.1",
            "binary_name": "pypy3-lib-testsuite"
        },
        {
            "binary_version": "7.3.9+dfsg-1ubuntu0.1",
            "binary_name": "pypy3-tk"
        },
        {
            "binary_version": "7.3.9+dfsg-1ubuntu0.1",
            "binary_name": "pypy3-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
Ubuntu:24.04:LTS
pypy3

Package

Name
pypy3
Purl
pkg:deb/ubuntu/pypy3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.3.12+dfsg-1
7.3.13+dfsg-1
7.3.14+dfsg-1
7.3.15+dfsg-1
7.3.15+dfsg-1build2
7.3.15+dfsg-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.3.15+dfsg-1build3",
            "binary_name": "pypy3"
        },
        {
            "binary_version": "7.3.15+dfsg-1build3",
            "binary_name": "pypy3-lib"
        },
        {
            "binary_version": "7.3.15+dfsg-1build3",
            "binary_name": "pypy3-lib-testsuite"
        },
        {
            "binary_version": "7.3.15+dfsg-1build3",
            "binary_name": "pypy3-tk"
        },
        {
            "binary_version": "7.3.15+dfsg-1build3",
            "binary_name": "pypy3-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
python3.12

Package

Name
python3.12
Purl
pkg:deb/ubuntu/python3.12?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.12.3-1ubuntu0.15

Affected versions

3.*
3.12.0-1
3.12.0-5
3.12.0-6
3.12.0-7
3.12.1-2
3.12.2-1
3.12.2-4build3
3.12.2-4build4
3.12.2-5ubuntu3
3.12.3-1
3.12.3-1ubuntu0.1
3.12.3-1ubuntu0.2
3.12.3-1ubuntu0.3
3.12.3-1ubuntu0.4
3.12.3-1ubuntu0.5
3.12.3-1ubuntu0.6
3.12.3-1ubuntu0.7
3.12.3-1ubuntu0.8
3.12.3-1ubuntu0.9
3.12.3-1ubuntu0.10
3.12.3-1ubuntu0.11
3.12.3-1ubuntu0.12
3.12.3-1ubuntu0.13

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "idle-python3.12"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "libpython3.12-minimal"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "libpython3.12-stdlib"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "libpython3.12-testsuite"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "libpython3.12t64"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "python3.12"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "python3.12-examples"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "python3.12-full"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "python3.12-minimal"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "python3.12-nopie"
        },
        {
            "binary_version": "3.12.3-1ubuntu0.15",
            "binary_name": "python3.12-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
Ubuntu:25.10
pypy3

Package

Name
pypy3
Purl
pkg:deb/ubuntu/pypy3?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.3.19+dfsg-1
7.3.19+dfsg-2
7.3.20+dfsg-1
7.3.20+dfsg-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.3.20+dfsg-3",
            "binary_name": "pypy3"
        },
        {
            "binary_version": "7.3.20+dfsg-3",
            "binary_name": "pypy3-lib"
        },
        {
            "binary_version": "7.3.20+dfsg-3",
            "binary_name": "pypy3-lib-testsuite"
        },
        {
            "binary_version": "7.3.20+dfsg-3",
            "binary_name": "pypy3-tk"
        },
        {
            "binary_version": "7.3.20+dfsg-3",
            "binary_name": "pypy3-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
python3.13

Package

Name
python3.13
Purl
pkg:deb/ubuntu/python3.13?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.13.3-1
3.13.3-2
3.13.3-4
3.13.4-1
3.13.5-1
3.13.5-2
3.13.6-1
3.13.7-1
3.13.7-1ubuntu0.1
3.13.7-1ubuntu0.2
3.13.7-1ubuntu0.3
3.13.7-1ubuntu0.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "idle-python3.13"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "libpython3.13"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "libpython3.13-minimal"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "libpython3.13-stdlib"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "libpython3.13-testsuite"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-examples"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-full"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-gdbm"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-minimal"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-nopie"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-tk"
        },
        {
            "binary_version": "3.13.7-1ubuntu0.4",
            "binary_name": "python3.13-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
python3.14

Package

Name
python3.14
Purl
pkg:deb/ubuntu/python3.14?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.14.0~a7-0ubuntu1
3.14.0~b1-1
3.14.0~b3-1
3.14.0~rc1-1
3.14.0~rc2-1
3.14.0~rc3-1
3.14.0-1
3.14.0-1ubuntu0.1
3.14.0-1ubuntu0.2
3.14.0-1ubuntu0.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "idle-python3.14"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "libpython3.14"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "libpython3.14-minimal"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "libpython3.14-stdlib"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "libpython3.14-testsuite"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-examples"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-full"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-gdbm"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-minimal"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-nopie"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-tk"
        },
        {
            "binary_version": "3.14.0-1ubuntu0.3",
            "binary_name": "python3.14-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
Ubuntu:26.04:LTS
pypy3

Package

Name
pypy3
Purl
pkg:deb/ubuntu/pypy3?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

7.*
7.3.20+dfsg-3
7.3.20+dfsg-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "7.3.20+dfsg-4",
            "binary_name": "pypy3"
        },
        {
            "binary_version": "7.3.20+dfsg-4",
            "binary_name": "pypy3-lib"
        },
        {
            "binary_version": "7.3.20+dfsg-4",
            "binary_name": "pypy3-lib-testsuite"
        },
        {
            "binary_version": "7.3.20+dfsg-4",
            "binary_name": "pypy3-tk"
        },
        {
            "binary_version": "7.3.20+dfsg-4",
            "binary_name": "pypy3-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"
python3.14

Package

Name
python3.14
Purl
pkg:deb/ubuntu/python3.14?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.14.4-1ubuntu0.1

Affected versions

3.*
3.14.0-1
3.14.0-2
3.14.0-4
3.14.2-1
3.14.3-1
3.14.3-2
3.14.3-3
3.14.3-5
3.14.4-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "idle-python3.14"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "libpython3.14"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "libpython3.14-minimal"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "libpython3.14-stdlib"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "libpython3.14-testsuite"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-examples"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-full"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-gdbm"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-minimal"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-nopie"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-tk"
        },
        {
            "binary_version": "3.14.4-1ubuntu0.1",
            "binary_name": "python3.14-venv"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-7774.json"