CVE-2026-112906

MediumCVSS 4.7/10Last modified Oct 20, 2026

Description

filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock versions from 4.1.0 can reuse a stale observation when an attacker pre-dates and removes its own marker, at least two lock-user processes are waiting, coarse or matching modification times preserve the observation, and an honest contender creates a fresh marker on the reused inode, causing that live marker to be removed as stale. This issue is fixed in version 4.2.1.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Weakness enumeration

CWE-694

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published
Oct 20, 2026
Last modified
Oct 20, 2026
NVD status
Undergoing Analysis

Related CVEs from 2026

CVE-2026-1129096.1filelock is a platform-independent file lock for Python. Prior to 4.2.1, UnixFileLock can truncate a regular file renamed onto the lock pathCVE-2026-112914.3Inappropriate implementation in Android Autofill in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to bypass sameCVE-2026-1129116.3filelock is a platform-independent file lock for Python. From 3.30.0 until 4.2.1, StrictSoftFileLock versions from 3.30.0 and SoftReadWriteLCVE-2026-1129122.5filelock is a platform-independent file lock for Python. From 3.32.6 until 4.2.1, SoftFileLock can follow a swapped symbolic link during theCVE-2026-1129145.3filelock is a platform-independent file lock for Python. From 4.1.0 until 4.2.1, SoftFileLock can restore a stale marker by name after movinCVE-2026-1129155.5filelock is a platform-independent file lock for Python. From 3.20.4 until 4.2.1, ReadWriteLock can open a crafted SQLite lock database withCVE-2026-112924.3Insufficient policy enforcement in Blink in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass content security policyCVE-2026-112921Robots::Validate versions from 0.4.3 before 0.4.10 for Perl report clients as imposter robots when User-Agent matcher state carries over froCVE-2026-112939.6Use after free in Input in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially perform a sandbox escape via a crafCVE-2026-1129346.1filelock is a platform-independent file lock for Python. From 4.0.0 until 4.2.1, SoftReadWriteLock refreshes holder records by name, allowinCVE-2026-1129354.7filelock is a platform-independent file lock for Python. From 3.22.0 until 4.2.1, SoftFileLock can break a stale marker after an attacker frCVE-2026-1129366.1filelock is a platform-independent file lock for Python. From 3.20.4 until 4.0.9, ReadWriteLock and AsyncReadWriteLock versions from 3.20.4
CVE-2026-112906: Medium severity, CVSS 4.7 | Vulnix