https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-08T08:02:08.915452+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-56315 CVE-2026-56315 — picklescan - Remote Code Execution via Unblocked Standard Library Modules 2026-10-08T08:02:08.917034+00:00

Affected: picklescan

picklescan before 1.0.4 fails to block at least seven Python standard library modules (including uuid, _osx_support, _aix_support, _pyrepl.pager, and imaplib) exposing eight functions that provide direct arbitrary command execution. Attackers can craft malicious pickle files importing these unblocked modules to achieve remote code execution while bypassing picklescan's safety validation entirely.

 https://cve.radiocsirt.org/vuln/ghsa-g38g-8gr9-h9xp GHSA-g38g-8gr9-h9xp — PickleScan has multiple stdlib modules with direct RCE not in blocklist 2026-10-08T08:02:08.917089+00:00

Affected: PyPI: picklescan

## Summary

picklescan v1.0.3 (latest) does not block at least 7 Python standard library modules that provide direct arbitrary command execution or code evaluation. A malicious pickle file importing these modules is reported as having 0 issues (CLEAN scan). This enables remote code execution that bypasses picklescan entirely.

## Severity

**Critical** (CVSS 9.8) — Direct RCE with zero scanner detection. Affects all deployments relying on picklescan, including HuggingFace Hub.

## Affected Versions

- picklescan <= 1.0.3 (all versions including latest)

## Details

### Unblocked RCE Modules

| Module | Function | RCE Mechanism | picklescan Result | |--------|----------|--------------|-------------------| | `uuid` | `_get_command_stdout(cmd, *args)` | `subprocess.Popen((cmd,) + args)` | CLEAN | | `_osx_support` | `_read_output(cmdstring)` | `os.system()` via temp file | CLEAN | | `_osx_support` | `_find_build_tool(toolname)` | Command injection via `%s` | CLEAN | | `_aix_support` | `_read_cmd_output(cmdstring)` | `os.system()` | CLEAN | | `_pyrepl.pager` | `pipe_pager(text, cmd)` | `subprocess.Popen(cmd, shell=True)` | CLEAN | | `_pyrepl.pager` | `tempfile_pager(text, cmd)` | `os.system(cmd + ...)` | CLEAN | | `imaplib` | `IMAP4_stream(command)` | `subprocess.Popen(command, shell=True)` | CLEAN | | `test.support.script_helper` | `assert_python_ok(*args)` | Spawns `python` subprocess | CLEAN |

All 8 functions are in Python's standard library and importable on all platforms.…