CVE-2026-53872 Details
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.
A vulnerability in Picklescan versions prior to 0.0.35 allows unauthenticated attackers to read arbitrary server files through unsafe pickle deserialization. The vulnerability arises from chaining io.FileIO with urllib.request.urlopen, enabling attackers to bypass blocklists aimed at preventing remote code execution. This exploitation can be used to exfiltrate sensitive data, such as the contents of /etc/passwd, to external servers.
Users are advised to update Picklescan to version 0.0.35 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 17, 2026CISA-ADP
Assessed Jun 17, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9726-w42j-3qjr | CISA-ADP | AdvisoryExploitVendor |
| https://github.com/mmaitre314/picklescan/security/advisories/GHSA-9726-w42j-3qjr | [email protected] | AdvisoryExploitVendor |
| https://www.vulncheck.com/advisories/picklescan-arbitrary-file-read-via-unsafe-pickle-deserialization | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| picklescan | < 0.0.35 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | New CVE Received | [email protected] |