CVE-2025-71320

CRITICAL
INFO Priority: 0.08 BB Relevance: 79/100
Published: 2026-06-17 Modified: 2026-11-08 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: High
VI: High
VA: High

Description

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 unblocked functions to achieve arbitrary code execution when the pickle is deserialized.

Affected Software (1)

VendorProductVersion
picklescan picklescan 0 < 0.0.33

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.82%
Raw Score 0.008230
Percentile 57.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00823
2026-11-12
0.00823
2026-11-10
0.00823
2026-11-09
0.00823
2026-11-08
0.00823

Intelligence Sources

mitre ref →