What is CVE-2026-56304?

CVE-2026-56304 is a medium-severity vulnerability in Picklescan, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2026-06-20.

How severe is CVE-2026-56304?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Deserialization in Picklescan

CVE-2026-56304

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 mali…

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Picklescan — versions 0, 1.0.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56304?: CVE-2026-56304 is a medium-severity vulnerability in Picklescan, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2026-06-20.
How severe is CVE-2026-56304?: Medium severity. CVSS v3 base score is 6.5 out of 10.