CVE-2026-112934: filelock >= 4.0.0, < 4.2.1

Affected technology

filelock · >= 4.0.0, < 4.2.1
tox-dev

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Local · Low privileges required · No user interaction required

What an attacker can do

Another local user with rename access to the lock directory can replace a record with a named pipe and stall the lock, or under a permissive hard-link policy to link a reachable target file and cause the lock user to write through it. Vendor/CNA’s CVSS 3.1 assessment (base score 6.1/10) rates confidentiality impact as none; integrity impact as low; availability impact as high.