UBUNTU-CVE-2026-112913

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Source
https://ubuntu.com/security/CVE-2026-112913
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-112913
Upstream
Published
2026-11-06T00:00:00Z
Modified
2026-11-07T01:45:05Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock and AsyncReadWriteLock on Windows use _connect to attach SQLite to the lock database by pathname, allowing another local account that can create adjacent names to place a database-wal or database-journal side file before acquisition. An undeletable WAL file makes each read or write acquisition fail immediately with sqlite3.OperationalError regardless of timeout. Separately, when the database contains at least one table, a hot journal that grants the lock account modify rights can cause SQLite recovery to delete a file named by that journal only when the lock account has permission to delete the target. The issue requires a directory writable by another account, such as a shared Windows temporary directory, and does not affect private directories. This issue is fixed in version 4.2.1.

References

Affected packages

Ubuntu:26.04:LTS
python-filelock

Package

Name
python-filelock
Purl
pkg:deb/ubuntu/python-filelock?arch=source&distro=resolute

Affected ranges

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

Affected versions

3.*
3.18.0-1
3.20.0-1
3.20.2-1
3.20.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-filelock",
            "binary_version": "3.20.3-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json"
Ubuntu:26.10
python-filelock

Package

Name
python-filelock
Purl
pkg:deb/ubuntu/python-filelock?arch=source&distro=stonking

Affected ranges

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

Affected versions

3.*
3.20.3-1
3.29.4-1
3.32.0-1
3.32.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-filelock",
            "binary_version": "3.32.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json"
Ubuntu:Pro:18.04:LTS
python-filelock

Package

Name
python-filelock
Purl
pkg:deb/ubuntu/python-filelock?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

2.*
2.0.11-1
2.0.12-1
2.0.13-1
3.*
3.0.0-2
3.0.3-1
3.0.4-1
3.0.4-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-filelock",
            "binary_version": "3.0.4-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-filelock",
            "binary_version": "3.0.4-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json"
Ubuntu:Pro:20.04:LTS
python-filelock

Package

Name
python-filelock
Purl
pkg:deb/ubuntu/python-filelock?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

3.*
3.0.12-1
3.0.12-2
3.0.12-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-filelock",
            "binary_version": "3.0.12-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json"
Ubuntu:Pro:22.04:LTS
python-filelock

Package

Name
python-filelock
Purl
pkg:deb/ubuntu/python-filelock?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.12-2
3.3.2-1
3.4.0-1
3.4.2-1
3.4.2-2
3.6.0-1
3.6.0-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-filelock",
            "binary_version": "3.6.0-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json"
Ubuntu:Pro:24.04:LTS
python-filelock

Package

Name
python-filelock
Purl
pkg:deb/ubuntu/python-filelock?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

3.*
3.12.2-1
3.12.4-1
3.13.1-1
3.13.1-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-filelock",
            "binary_version": "3.13.1-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-112913.json"