What is CVE-2025-71320?

CVE-2025-71320 is a critical-severity vulnerability in Picklescan, classified under Incomplete List of Disallowed Inputs. CVSS score: 9.8/10. Published 2026-06-17.

How severe is CVE-2025-71320?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Picklescan

CVE-2025-71320

picklescan before 0.0.33 contains an incomplete deny-list that fails to block pydoc.locate and operator.methodcaller functions, allowing attackers to bypass security checks. Remote attackers can craft malicious pickle files using these unb…

EPSS: 0.006 (46.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Picklescan — versions 0, 0.0.33

Weakness classification (CWE)

CWE-184 — Incomplete List of Disallowed Inputs

References

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

Frequently asked questions

What is CVE-2025-71320?: CVE-2025-71320 is a critical-severity vulnerability in Picklescan, classified under Incomplete List of Disallowed Inputs. CVSS score: 9.8/10. Published 2026-06-17.
How severe is CVE-2025-71320?: Critical severity. CVSS v3 base score is 9.8 out of 10.