MEDIUMCVSS v3.1 4.7Vulnerability

CVE-2026-112939

filelock is a platform-independent file lock for Python. From 3.22.0 until 4.2.1, SoftFileLock can trust a forged process identifier in a marker that an attacker can modify but cannot remove, allowing an authorized contender such as another process of the holder's account or root to act as a confused deputy, remove the live marker, and admit another holder. This issue is fixed in version 4.2.1.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Cvss severity
MEDIUM
Cvss score
4.7
Retrieved at
2026-10-20T21:15:35+00:00
Score
4.7
Cvss version
3.1
Last source
NVD
Cve id
CVE-2026-112939
Cvss vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
First seen by Signal
2026-10-20T17:10:14+00:00
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Published at
2026-10-20T15:17:16.663
Last modified
2026-10-20T19:48:50.250

Related Entities (1)

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CVE-2026-112939 (CVSS v3.1 4.7) — Ninja Signal Threat Intelligence | Ninja Signal