CVE•Published 2026-10-20•Modified 2026-10-21•0 articles on news•4 live references•NVD data

CVE-2026-112936Tox-dev · Filelock

Vulnerability data via NVD (ingested)

CVSS v3.1

6.1

MEDIUM

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

EPSS percentile

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Weaknesses (CWE)

CWE-59Improper Link Resolution Before File Access ('Link Following')CWE-668Exposure of Resource to Wrong Sphere

Description

filelock is a platform-independent file lock for Python. From 3.20.4 until 4.0.9, ReadWriteLock and AsyncReadWriteLock versions from 3.20.4 resolve the lock path and pass it to SQLite without rejecting a final symbolic link, allowing another local user who can create names in the lock directory to redirect database creation and locking or split mutual exclusion between targets. This issue is fixed in version 4.0.9.

Timeline

Published 2026-10-20

Modified 2026-10-21

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-112936

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Tox-dev Filelock"

All exposed Tox-dev Filelock instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Filelock"

HTTP body or banner mentions "Filelock" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-112936