CVE-2026-53872

picklescan - Arbitrary File Read via Unsafe Pickle Deserialization

Published Jun 17, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
picklescan before 0.0.35 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to read arbitrary server files by chaining io.FileIO and urllib.request.urlopen. Attackers can bypass RCE-focused blocklists to exfiltrate sensitive data like /etc/passwd to external servers.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-9726-w42j-3qjr picklescan has Arbitrary file read using `io.FileIO`
History
Type Values Removed Values Added
Description picklescan before 0.0.35 contains an unsafe pickle deserialization vulnerability allowing unauthenticated attackers to read arbitrary server files by chaining io.FileIO and urllib.request.urlopen. Attackers can bypass RCE-focused blocklists to exfiltrate sensitive data like /etc/passwd to external servers.
Title picklescan - Arbitrary File Read via Unsafe Pickle Deserialization
First Time appeared Mmaitre314
Mmaitre314 picklescan
Weaknesses CWE-22
CPEs cpe:2.3:a:mmaitre314:picklescan:*:*:*:*:*:*:*:*
Vendors & Products Mmaitre314
Mmaitre314 picklescan
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 8, 2026, 2:05 PM
Reserved
Jun 10, 2026, 9:23 PM
Status
Deferred
Published
Jun 17, 2026, 5:17 PM
Modified
Jun 17, 2026, 8:21 PM