CVE-2026-56304
picklescan vulnerable to arbitrary file create using logging.FileHandler
EPSS 0.29%
Description
picklescan before 1.0.1 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to create arbitrary zero-byte files via logging.FileHandler class instantiation. Attackers can exploit this by crafting malicious pickle payloads to bypass RCE blocklists and create lock files or other filesystem artifacts, potentially causing denial of service or application disruption.
How to fix CVE-2026-56304
To remediate CVE-2026-56304, upgrade the affected package to a fixed version below.
- PyPI/picklescan—upgrade to 1.0.1 or later
- —upgrade to 1.0.1 or later
Is CVE-2026-56304 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.0.1
- from 0, < 1.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P |