DEBIAN-CVE-2026-112909

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Source
https://security-tracker.debian.org/tracker/CVE-2026-112909
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112909.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-112909
Upstream
Published
2026-10-20T21:47:42Z
Modified
2026-10-21T05:00:06Z
Summary
[none]
Details

filelock is a platform-independent file lock for Python. Prior to 4.2.1, UnixFileLock can truncate a regular file renamed onto the lock path when another local user has actual rename permission, or hard-linked there under a permissive hard-link policy; when an explicit mode is requested, affected versions from 3.10.2 can also change that file's mode. This issue is fixed in version 4.2.1.

References

Affected packages

Debian:12 / python-filelock

Package

Name
python-filelock
Purl
pkg:deb/debian/python-filelock?arch=source&distro=bookworm

Affected ranges

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

Affected versions

3.*
3.9.0-1
3.9.0-1+deb12u1
3.12.2-1
3.12.3-1
3.12.4-1
3.13.1-1
3.13.3-1
3.13.4-1
3.14.0-1
3.15.4-1
3.16.1-1
3.16.1-2
3.17.0-1
3.18.0-1
3.19.1-1
3.20.0-1
3.20.2-1
3.20.3-1
3.24.3-1
3.25.0-1
3.25.2-1
3.29.0-1
3.29.4-1
3.29.5-1
3.29.7-1
3.32.0-1
3.32.2-1
3.32.4-1
3.32.4-2
3.32.5-1
3.32.6-1
4.*
4.0.1-1
4.0.12-1
4.1.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112909.json"

Debian:13 / python-filelock

Package

Name
python-filelock
Purl
pkg:deb/debian/python-filelock?arch=source&distro=trixie

Affected ranges

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

Affected versions

3.*
3.18.0-1
3.18.0-1+deb13u1
3.19.1-1
3.20.0-1
3.20.2-1
3.20.3-1
3.24.3-1
3.25.0-1
3.25.2-1
3.29.0-1
3.29.4-1
3.29.5-1
3.29.7-1
3.32.0-1
3.32.2-1
3.32.4-1
3.32.4-2
3.32.5-1
3.32.6-1
4.*
4.0.1-1
4.0.12-1
4.1.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112909.json"

Debian:14 / python-filelock

Package

Name
python-filelock
Purl
pkg:deb/debian/python-filelock?arch=source&distro=forky

Affected ranges

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

Affected versions

3.*
3.18.0-1
3.19.1-1
3.20.0-1
3.20.2-1
3.20.3-1
3.24.3-1
3.25.0-1
3.25.2-1
3.29.0-1
3.29.4-1
3.29.5-1
3.29.7-1
3.32.0-1
3.32.2-1
3.32.4-1
3.32.4-2
3.32.5-1
3.32.6-1
4.*
4.0.1-1
4.0.12-1
4.1.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112909.json"